Availability
The FiTech Ultimate LS EFI 500 HP fuel injection system with long runner cathedral intake kit comes with an intake, 92mm throttle body, LS3 coil packs and a transmission controller. FiTech self-tuning induction systems for LS engines are designed for the do-it-yourself hot rodder! This system is ready to go with everything needed to complete the induction system of your LS engine and get you on the road easily and faster than any system on the market today. The Ultimate LS ECU has the ability to control the shift points, shift firmness, downshifts and all other features involved when controlling the transmission. This feature is suitable for 4L60, 4L65, 4L80 or 4L85 transmissions. FiTech's Ultimate EFI is a complete kit. Check out the list of features and you will wonder why it's never been so simple to ditch that old factory hardware or top off that fresh long block. FiTech has taken the work out of getting your LS up and running in a flash. That's why FiTech calls this the Ultimate EFI system.
Not Yet Reviewed
$2,320.99
FiTech Nitro-Port Series cast intake manifolds are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. These manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 1997 and up.
Not Yet Reviewed
$715.00
FiTech Nitro-Port cast LS3 750 hp EFI loaded intake manifold kits are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. The manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 2007 and up.
Not Yet Reviewed
$1,200.00
FiTech Nitro-Port cast LS1 750 hp EFI loaded intake manifold kits are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. The manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 1997 and up.
Not Yet Reviewed
$1,200.00
FiTech Nitro-Port cast LS3 500 hp EFI loaded intake manifold kits are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. The manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 2007 and up.
Not Yet Reviewed
$1,200.00
FiTech Nitro-Port cast LS3 1000 hp EFI loaded intake manifold kits are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. The manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 2007 and up.
Not Yet Reviewed
$1,200.00
FiTech Nitro-Port cast LS1 1000 hp EFI loaded intake manifold kits are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. The manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 1997 and up.
Not Yet Reviewed
$1,200.00
FiTech Nitro-Port cast LS1 500 hp EFI loaded intake manifold kits are engineered for serious street and strip enthusiasts, providing power, precision, and versatility to LS1 and LS3 platforms. Designed with performance and adaptability in mind, Nitro-Port manifolds feature a low-profile, modular design ideal for tight engine bays while supplying aggressive performance gains. Short runners support high-RPM power, and -8 AN fuel rails with -8 ORB fittings ensure consistent high-flow fuel delivery under demanding conditions. For those pushing the limits, integrated nitrous/water injection bungs offer easy expandability, while rear-mounted vacuum and pressure ports keep plumbing clean and accessible. The manifolds also include a rear-mounted MAP sensor location for simplified installation. The Nitro-Port accepts 92mm, 102mm, and drive-by-wire throttle bodies with a straight throttle body mounting flange, allowing builders more flexibility across multiple LS configurations. Whether you're building a high-revving track machine or a show-stopping street car, FiTech Nitro-Port cast manifolds deliver the performance, reliability, and engineering excellence customers expect from FiTech Fuel Injection. * Models are available for a variety of Chevy engines from 1997 and up.
Not Yet Reviewed
$1,200.00
The FiTech Ultimate Rebel LS 1000 hp EFI loaded intake manifold kits offer significant performance and convenience benefits for LS engine builds, supporting up to 1000 horsepower. That makes them suitable for both naturally aspirated and boosted applications. The kits are designed to streamline the conversion to electronic fuel injection (EFI), providing a complete, high-performance solution with features like optimized airflow, and precise fuel delivery. Plus, these conversion kits are easy to install. Key benefits of the FiTech Ultimate Rebel LS EFI System: * High-Performance—supports up to 1000 horsepower, making it suitable for both naturally aspirated and boosted applications * Includes all necessary components for a streamlined installation, such as the intake manifold, throttle body, injectors, wiring harness, and sensors * Optimized power delivery—features a long runner intake manifold designed to enhance power in the 1500-6500 rpm range * Increased airflow—the 102mm throttle body ensures ample airflow for improved performance * Precise engine management, sequential fuel and spark control, along with dual wideband O2 sensors, provide accurate monitoring and optimal performance * Boost/Nitrous compatibility—the 3 BAR MAP sensor supports boosted applications up to 30 psi * Enhanced appearance—the redesigned fuel rail bracket and overall cleaner profile contribute to a more refined engine bay appearance * User-Friendly installation—kit is designed for ease of installation, minimizing downtime and complexity * Improved fuel efficiency—optimizes fuel delivery for better fuel economy * Better throttle response—provides a more responsive and engaging driving experience Specific features: * Thicker gauge manifold reduces injection noise for a quieter operation * Redesigned fuel rail bracket enhances the visual appeal of the engine bay * Handheld monitor allows for real-time adjustments and tuning * Magnetic handheld mount provides convenient storage and access to the monitor * Oxygen sensor bung kit for proper sensor installation * Throttle cable brackets ensure proper throttle linkage setup
Not Yet Reviewed
$995.00
FiTech Fuel Injection proudly introduces the Nitro-Port Cast LS3 500 hp fuel injections systems, combining FiTech's cutting-edge EFI technology with the all-new Nitro-Port Series intake manifold. Designed for serious street builds and track performers, these complete EFI systems deliver reliable horsepower and modern drivability in one powerful package. At the heart of each kit is the Nitro-Port cast intake manifold, engineered with a low-profile modular runner design, short runners for high-rpm performance, -8 AN fuel rails, pre-drilled and tapped nitrous/water injection port, and support for 92mm, 102mm, and drive-by-wire throttle bodies (drive-by-throttle bodies coming soon). Rear-mounted vacuum ports and MAP sensor location keep installations clean and streamlined. Every Nitro-Port LS EFI System includes: * FiTech ECU * Complete wiring harness * Full set of sensors (including MAP, IAT, CTS, and more) * Dual Wideband O2 sensors * Touchscreen handheld controller for setup and tuning * And of course, the Nitro-Port intake manifold These plug-and-play systems take the guesswork out of EFI conversions while delivering exceptional performance and adjustability right out of the box. Whether you're swapping an LS into your muscle car or building a high-horsepower track weapon, the FiTech Nitro-Port LS EFI Systems provide the power, tuning control, and quality FiTech is known for.
Not Yet Reviewed
$2,245.00
—
$2,445.00
FiTech Fuel Injection proudly introduces the Nitro-Port Cast LS3 750 hp fuel injections systems, combining FiTech's cutting-edge EFI technology with the all-new Nitro-Port Series intake manifold. Designed for serious street builds and track performers, these complete EFI systems deliver reliable horsepower and modern drivability in one powerful package. At the heart of each kit is the Nitro-Port cast intake manifold, engineered with a low-profile modular runner design, short runners for high-rpm performance, -8 AN fuel rails, pre-drilled and tapped nitrous/water injection port, and support for 92mm, 102mm, and drive-by-wire throttle bodies (drive-by-throttle bodies coming soon). Rear-mounted vacuum ports and MAP sensor location keep installations clean and streamlined. Every Nitro-Port LS EFI System includes: * FiTech ECU * Complete wiring harness * Full set of sensors (including MAP, IAT, CTS, and more) * Dual Wideband O2 sensors * Touchscreen handheld controller for setup and tuning * And of course, the Nitro-Port intake manifold These plug-and-play systems take the guesswork out of EFI conversions while delivering exceptional performance and adjustability right out of the box. Whether you're swapping an LS into your muscle car or building a high-horsepower track weapon, the FiTech Nitro-Port LS EFI Systems provide the power, tuning control, and quality FiTech is known for.
Not Yet Reviewed
$2,245.00
—
$2,445.00
FiTech Fuel Injection proudly introduces the Nitro-Port Cast LS3 1000 hp fuel injections systems, combining FiTech's cutting-edge EFI technology with the all-new Nitro-Port Series intake manifold. Designed for serious street builds and track performers, these complete EFI systems deliver reliable horsepower and modern drivability in one powerful package. At the heart of each kit is the Nitro-Port cast intake manifold, engineered with a low-profile modular runner design, short runners for high-rpm performance, -8 AN fuel rails, pre-drilled and tapped nitrous/water injection port, and support for 92mm, 102mm, and drive-by-wire throttle bodies (drive-by-throttle bodies coming soon). Rear-mounted vacuum ports and MAP sensor location keep installations clean and streamlined. Every Nitro-Port LS EFI System includes: * FiTech ECU * Complete wiring harness * Full set of sensors (including MAP, IAT, CTS, and more) * Dual Wideband O2 sensors * Touchscreen handheld controller for setup and tuning * And of course, the Nitro-Port intake manifold These plug-and-play systems take the guesswork out of EFI conversions while delivering exceptional performance and adjustability right out of the box. Whether you're swapping an LS into your muscle car or building a high-horsepower track weapon, the FiTech Nitro-Port LS EFI Systems provide the power, tuning control, and quality FiTech is known for.
Not Yet Reviewed
$2,245.00
—
$2,445.00
FiTech Fuel Injection proudly introduces the Nitro-Port Cast LS1 500 hp fuel injections systems, combining FiTech's cutting-edge EFI technology with the all-new Nitro-Port Series intake manifold. Designed for serious street builds and track performers, these complete EFI systems deliver reliable horsepower and modern drivability in one powerful package. At the heart of each kit is the Nitro-Port cast intake manifold, engineered with a low-profile modular runner design, short runners for high-rpm performance, -8 AN fuel rails, pre-drilled and tapped nitrous/water injection port, and support for 92mm, 102mm, and drive-by-wire throttle bodies (drive-by-throttle bodies coming soon). Rear-mounted vacuum ports and MAP sensor location keep installations clean and streamlined. Every Nitro-Port LS EFI System includes: * FiTech ECU * Complete wiring harness * Full set of sensors (including MAP, IAT, CTS, and more) * Dual Wideband O2 sensors * Touchscreen handheld controller for setup and tuning * And of course, the Nitro-Port intake manifold These plug-and-play systems take the guesswork out of EFI conversions while delivering exceptional performance and adjustability right out of the box. Whether you're swapping an LS into your muscle car or building a high-horsepower track weapon, the FiTech Nitro-Port LS EFI Systems provide the power, tuning control, and quality FiTech is known for.
Not Yet Reviewed
$2,245.00
—
$2,445.00
FiTech Fuel Injection proudly introduces the Nitro-Port Cast LS1 750 hp fuel injections systems, combining FiTech's cutting-edge EFI technology with the all-new Nitro-Port Series intake manifold. Designed for serious street builds and track performers, these complete EFI systems deliver reliable horsepower and modern drivability in one powerful package. At the heart of each kit is the Nitro-Port cast intake manifold, engineered with a low-profile modular runner design, short runners for high-rpm performance, -8 AN fuel rails, pre-drilled and tapped nitrous/water injection port, and support for 92mm, 102mm, and drive-by-wire throttle bodies (drive-by-throttle bodies coming soon). Rear-mounted vacuum ports and MAP sensor location keep installations clean and streamlined. Every Nitro-Port LS EFI System includes: * FiTech ECU * Complete wiring harness * Full set of sensors (including MAP, IAT, CTS, and more) * Dual Wideband O2 sensors * Touchscreen handheld controller for setup and tuning * And of course, the Nitro-Port intake manifold These plug-and-play systems take the guesswork out of EFI conversions while delivering exceptional performance and adjustability right out of the box. Whether you're swapping an LS into your muscle car or building a high-horsepower track weapon, the FiTech Nitro-Port LS EFI Systems provide the power, tuning control, and quality FiTech is known for.
Not Yet Reviewed
$2,245.00
—
$2,445.00
FiTech Fuel Injection proudly introduces the Nitro-Port Cast LS1 1000 hp fuel injections systems, combining FiTech's cutting-edge EFI technology with the all-new Nitro-Port Series intake manifold. Designed for serious street builds and track performers, these complete EFI systems deliver reliable horsepower and modern drivability in one powerful package. At the heart of each kit is the Nitro-Port cast intake manifold, engineered with a low-profile modular runner design, short runners for high-rpm performance, -8 AN fuel rails, pre-drilled and tapped nitrous/water injection port, and support for 92mm, 102mm, and drive-by-wire throttle bodies (drive-by-throttle bodies coming soon). Rear-mounted vacuum ports and MAP sensor location keep installations clean and streamlined. Every Nitro-Port LS EFI System includes: * FiTech ECU * Complete wiring harness * Full set of sensors (including MAP, IAT, CTS, and more) * Dual Wideband O2 sensors * Touchscreen handheld controller for setup and tuning * And of course, the Nitro-Port intake manifold These plug-and-play systems take the guesswork out of EFI conversions while delivering exceptional performance and adjustability right out of the box. Whether you're swapping an LS into your muscle car or building a high-horsepower track weapon, the FiTech Nitro-Port LS EFI Systems provide the power, tuning control, and quality FiTech is known for.
Not Yet Reviewed
$2,245.00
—
$2,399.00
FiTech has partnered with TANKS Inc. to make your EFI upgrade even easier with a comprehensive line of new FiTech Go EFI fuel tank kits. Fuel injection demands higher pressure from an electric fuel pump, and the best place to mount a pump is in the gas tank. FiTech's in-tank module is supplied with a 340 lph fuel pump to support up to 800 hp. The fuel pumps bolt directly into the tank's recessed mount, providing a modern EFI solution for hot rods, classic trucks and muscle cars. FiTech Go EFI fuel tank kits also include the following: * Direct-fit tanks feature internal baffles for constant fuel delivery * In-tank pump module secures the supplied 340 lph pump in the tank * -6 AN inlet/outlet that provides leak-free fuel line connections * Recessed sending unit and pump mount that provides added clearance
( 23 )
$638.00
FiTech Ultimate LS Loaded intake manifold kits are just like the systems, but without the ECU and hand-held controller. FiTech Ultimate LS Loaded intake manifold kits will have: * Low-profile 92mm or 102mm (750 hp kits only) inlet aluminum fabricated intake with 1,500 to 6,500 rpm powerband, 3mm construction, TIG-welded, black anodized with embossed FiTech logo * CNC-machined with O-ring gaskets and hardware included * High-flow cable operated 92mm or 102mm (750 hp kits only) throttle body * Parabolic inlet machining for smooth throttle transitions, same as OE * Throttle body features progressive linkage pulley with double-return spring and adjustable stop * Billet fuel rails with AN fittings and fuel crossover * 36 or 55 (750 hp kits only) lbs./hr. flow-matched injectors
( 6 )
$965.00
FiTech intake manifolds provide you with great manifold and fuel rail package to start your project. The low-profile intake manifold is fabricated from T-6061 aluminum with 102mm inlet and a 1,500 to 6,500 rpm powerband. The billet fuel rails include AN fittings and fuel crossover. FiTech includes hardware, as well.
( 5 )
$483.00
—
$900.00
The FiTech Ultimate Rebel LS 750 hp EFI loaded intake manifold kits are a popular choice for enthusiasts looking to upgrade their LS engine's performance and aesthetics. These kits offer several benefits for LS engine conversions, including increased horsepower potential, improved airflow, and a cleaner engine bay appearance. The kits are designed for ease of installation and optimal performance, supporting up to 750 horsepower and offering features like E85 compatibility and boost/nitrous readiness, which makes them suitable for high-performance applications. Key benefits and advantages: * Modern engine management utilizes speed density metering for optimal performance * Billet fuel rails and 55 lb. injectors ensure reliable and consistent fuel flow * Boost/Nitrous compatibility—the system can handle boosted and nitrous applications, making it suitable for high-performance builds * E85 compatibility—supports E85 fuel, offering flexibility for different fuel preferences * Visual appeal—the low-profile intake manifold and redesigned fuel rail bracket enhance the overall appearance of the engine bay Kit components: * LS1/LS2/LS6 FiTech Rebel LS Fabricated Short Manifold (manifold, gaskets and hardware) * Ultimate LS 102mm throttle body with sensors * 55 lb. injectors * 3 Bar MAP sensor allows for boost and nitrous applications, expanding the performance potential of the engine * IAT sensor * Throttle cable bracket with round hole for new style LS intake * Throttle cable bracket with stock GM cable notch for new style LS intake with cable barrel clamp
Not Yet Reviewed
$995.00
FiTech Ultimate Rebel LS cathedral intake manifolds with fuel rails enhance the performance of LS engines equipped with cathedral port cylinder heads. The manifold optimizes airflow and ensures consistent fuel delivery, resulting in improved engine efficiency and power output, while the fuel rails provide a consistent fuel delivery solution. Paired under the hood they provide a perfect fusion of aesthetics and performance. Features: * Precision-engineered cathedral port design for optimal airflow * Integrated fuel rail mounting points for a clean installation * Designed to improve air velocity into the cylinder heads * Engineered to increase the volume of air entering the engine * Compatible with factory or aftermarket fuel lines
Not Yet Reviewed
$549.00
FiTech offers LS Tri-Power fuel injected intake manifolds for a variety of applications. These units are designed for triple 2-barrel throttle bodies with a 2300 flange.
Not Yet Reviewed
$560.00
FiTech offers Rebel LS intake manifolds for a variety of applications, including LS1, LS2, LS3, and LS4 engines. Fabricated from 3mm thick aluminum, the multi-port fuel-injection style units are available in short or tall height configurations. They're TIG-welded with a 1,500-6,500 rpm power band up to 500 hp to the flywheel. Choose from a black, black anodized, satin, or polished finish. Order the options recommended for your vehicle.
Not Yet Reviewed
$995.00
The FiTech Ultimate Rebel LS 500 hp EFI loaded intake manifold kits offer numerous benefits for LS engine conversions, including improved performance, enhanced fuel efficiency, and simplified installation to help to minimize downtime. These kits provide a modern, self-tuning fuel injection system that optimizes engine performance, offering better throttle response, increased horsepower, and improved fuel economy compared to traditional carburetors. These comprehensive conversion kits come with all the necessary components for a complete installation, including the ECU, sensors, wiring harness, and other fuel system parts. Key benefits and advantages: * Modern engine management utilizes speed density metering for optimal performance * Reliable and consistent fuel delivery * Boost/Nitrous compatibility—the system can handle boosted and nitrous applications, making it suitable for high-performance builds * E85 compatibility—supports E85 fuel, offering flexibility for different fuel preferences * Visual appeal—the low-profile intake manifold and redesigned fuel rail bracket enhance the overall appearance of the engine bay Kit components: * LS1/LS2/LS6 FiTech Rebel LS Fabricated Short Manifold (manifold, gaskets and hardware) * Ultimate LS 92mm throttle body with sensors * 36 lb. injectors * 3 Bar MAP sensor allows for boost and nitrous applications, expanding the performance potential of the engine * IAT sensor * Throttle cable bracket with round hole for new style LS intake * Throttle cable bracket with stock GM cable notch for new style LS intake with cable barrel clamp
Not Yet Reviewed
$995.00
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
