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Holley Mid-Mount complete accessory systems achieve what no other accessory bracket systems do--eliminate the brackets! This pulls in all the accessories tighter than other accessory drives by bolting directly to other components for a clean, integrated form. They offer superb engine visibility to show off your horsepower, not your accessories. Holley Mid-Mount complete accessory systems are available in several versions and finishes to match your application. Order the kit designed to fit your engine.
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$3,949.95
$2,202.95
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$4,714.95
Holley's Ford 7.3L Godzilla high-mount accessory drive complete kits with their patent-pending technology, integrates timing cover, oil pump, oil pan, water pump, alternator, and the option for A/C and/or P/S, all in one streamlined system. Plus, they are compatible with both factory crank pulleys and aftermarket damper/pulleys. Positioning an engine swap correctly is crucial, ensuring it aligns with the vehicle's original engine's crankshaft centerline. Holley's innovative solution achieves just that, allowing proper engine placement while providing clearance for a stock Fox Body hood (when used with a low-profile intake). Our system replaces Ford's sump-mounted oil pump with a high-capacity gerotor pump positioned behind the timing cover, gaining crucial crossmember and ground clearance. To ensure reliability, they incorporated a proven pump design utilizing Melling sourced components that mimics the factory pressure level. Unlike most pumps that require removing the oil pan to change the pressure spring, Holley introduced a first-of-its-kind external access port, allowing hassle-free spring switching. Moreover, their cast aluminum oil pan features a performance-minded windage tray and baffle, guaranteeing proper oil pickup during high-G maneuvers. For extreme situations, such as drag racing, upgrade to the optional race baffle to always ensure proper oil delivery. These accessory drive systems offer flexible configuration options to meet various needs, making Holley's Godzilla high-mount accessory drive kits the ultimate solutions for engine swaps, offering unparalleled functionality, adaptability, and ease of installation. Choose from natural as-cast aluminum or black finish.
Not Yet Reviewed
$2,715.95
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$3,099.95
Holley Terminator X MAX engine management systems let you take control of your domestic V8 engine. They give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI—all at a budget-friendly price! Every MPFI Terminator X MAX features real-time fuel learn, high-impedance injector drivers, an integrated one-bar MAP sensor—and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Also, Holley offers the X MAX systems with either or both drive-by-wire (DBW) throttle body control or transmission control. All kits come fully loaded with base maps for common domestic V8 engine combinations to get you out of the garage and onto the road or track fast. Order the model recommended for your vehicle application. Features include: * Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users * Real-time fuel map learn—takes the guesswork out of tuning your base fuel table * High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors (will not control low-impedance injectors) * Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control * On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos * MAP sensor vacuum hose adapters * 4 inputs: 12 V, ground, 5 V, and frequency * 4 outputs: Ground, PWM, and for accessories * Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties * Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen * Advanced tables can be used for any custom tables * On-board diagnostic LEDs allow you to identify any critical engine issues at a glance * The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up! * Plug-and-play compatible with more Holley EFI accessories * Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most V8 engines, as well as tuning and gauge display functions
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$2,299.95
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$3,399.95
Ready for standalone engine management at a budget price? Take control of your GM Gen V LT1, L83, or L86 engine with a Holley Terminator X Max GM Gen V LT direct injection kit! They're available to fit early non-WT drive-by-wire engines, as well as late WT drive-by-wire engines. Terminator X and X Max features and benefits: * Plug-and-play GM Gen V LT engine control, including GDI and VVT support * Ideal for swapping late model GM Gen V LT engines into vintage vehicles * 3.5 in. hand-held gets your engine running in no time with a step-by-step calibration wizard * GM LS and LT drive-by wire throttle body control (Terminator X Max only) * GM 4L60 and 4L80 transmission control (Terminator X Max only) * Included engine harness plugs directly into the factory LT DI injector sub harness * OEM Injectors supported, with part numbers provided in the handheld wizard or software * Genuine Bosch LSU 4.9 wideband control (will not work with LSU 4.2 oxygen sensors) * On-Board Diagnostic LEDS for: ECU Power – Engine Run – Wideband Status – TPS Calibration – Crank Signal – Cam Signal – VVT Status – Pump Control – and DI Injectors. This allows you to identify any critical engine issues at a glance * Built-in 1 bar MAP sensor, vacuum hose adapters included (1/8th, 1/4 and 3/16ths); or for Boosted applications, you can disable the internal MAP sensor, and utilize an external LT MAP sensor. The harness comes with the connector terminated, making the installation a snap * 4 inputs: 12 V, Ground, 5 V, and Frequency—for things such as additional pressure sensors, or activation triggers for nitrous activation, or a trans brake (Fuel and Oil Pressure inputs are pre-terminated) * 4 Outputs: -- Ground -- PWM – for accessories such as fans, boost control, nitrous control, IAC kit, and more -- Boost Control – Boost vs Time, Boost vs Gear, Boost vs RPM, Boost vs Speed, Boost Safeties -- Nitrous Control – Single Channel of Wet or Dry, Progressive or Non-Progressive, Rich/Lean Safeties, and target Closed Loop AFR * Integrated data logging to the 3.5 in. hand-held SD card * Free EFI tuning software for complete control of your Terminator X powerplant Terminator X Max ECU Connections: * J1A - Main Harness Connector: This connector is primarily an "Input" connector. It contains all the sensor inputs and wide band oxygen sensor control. * J1B - Main Harness Connector: The second connector is the "J1B" connector (26 pin). This connector is the "output" connector. It has eight injector outputs and outputs for other devices. * MAP Sensor: Used on N/A applications, connect directly to full manifold vacuum port on the intake manifold. * Main Power: Connects to the Main Power Harness; these two wires MUST be wired directly to the battery terminals. * J3: Connection point for the drive-by-wire harness. * J4: Connection point for the transmission harness.
Not Yet Reviewed
$3,149.95
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$3,649.95
Holley High-Mount complete accessory systems offer exceptional clearance for swap applications when your chassis clearance is very limiting. They mount your accessories higher on the engine with many configurations and accessory options available. Holley High-Mount complete accessory systems are available in a natural, black, or polished finish. Order the kit designed to fit your LS/LT engine.
Not Yet Reviewed
$2,356.95
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$2,715.95
Holley Terminator X engine management systems let you take control of your domestic V8 engine. These kits give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI—all at a budget-friendly price! Every MPFI Terminator X features real-time fuel learn, high impedance injector drivers, an integrated one-bar MAP sensor—and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. All systems come fully loaded with base maps for common engine combinations to get you out of the garage and onto the road or track fast. Features include: * Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users * Real-time fuel map learn—takes the guesswork out of tuning your base fuel table * High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors. (Will not control low-impedance injectors) * Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control * On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos * MAP sensor vacuum hose adapters * 4 inputs: 12 V, ground, 5 V, and frequency * 4 outputs: Ground, PWM for accessories * Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties * Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen * Advanced tables: 4 x 1D tables, 1 x 1D per gear table, 4 x 2D tables, 1 x 2D per gear table * On-board diagnostic LEDs allow you to identify any critical engine issues at a glance * The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up! * Plug-and-play compatible with more Holley EFI accessories * Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most domestic V8 engines, as well as tuning and gauge display functions (not available with every kit)
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$2,609.95
Now available from Holley are LS engine swap accessory drive systems. Included are accessories and pulleys that are manufactured by OEM part suppliers for durability and direct bolt-on installation. Order the kit that's best suited for your vehicle and engine application. Features and facts: * Universal brackets fit virtually all common LS engines, regardless of water pump and harmonic balancer offsets--thus reducing cost and complexity compared with competitive products * Simple, dedicated installation kits allow easy fitment to Corvette, F-Body, or truck drive offsets * Accessories, tensioner, and pulleys are manufactured by OEM suppliers and many of the parts are used on production vehicles today
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$2,305.95
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$2,817.95
Gear up for your next off-road adventure with complete Performance Package upgrades from Holley Off-Road. They deliver performance systems from exhaust to brakes, tuners, suspension, and more, and their products are engineered to work together, ensuring you have everything you need to have fun on and off the road. Holley Off-Road 2019-22 Chevy/GMC performance packages are comprehensive upgrades specifically tailored to these pickups. The suspension upgrades feature ADS Racing Mesa 2.5 Series shocks, which are larger than stock, providing increased fluid capacity to prevent shock fade and deliver exceptional off-road durability combined with commuter comfort. The kits also include a Flowmaster Signature Series exhaust system, known for its hand-welded 304 stainless steel construction and balanced sound profile, offering an aggressive yet moderate tone. Additionally, these packages are equipped with a DiabloSport InTune 3, which provides pre-loaded tunes and customization options for optimal performance. Finally, the Big Claw performance rotors, designed for improved braking performance and enhanced cooling, ensure safety and reliability during high-performance driving. Features: * ADS Mesa 2.5 in. front coilovers: Premium shock absorbers are designed for maximum durability and performance, featuring a UV-stable ceramic powdercoated steel shock body and black anodized billet aluminum top and bottom caps. * ADS Mesa rear shocks: Filled with premium full synthetic shock oil, the shock absorber incorporates an internal floating piston (IFP) to ensure consistent damping performance, improved responsiveness, and increased longevity. * Flowmaster Signature Series exhaust: Features a 3.00 in. inlet pipe leading into a TIG-welded 304 stainless steel Signature Series "straight-through" muffler for great sound and maximum performance. * Diablosport InTune 3 GM tune: Includes industry leading inTune 3 handheld tuner, along with the locksmith device and harnesses required to unlock both the ECM and TCM in your truck * Baer Brakes: Baer Brakes Claw combo kits are a great way to improve your vehicles braking performance and overall appearance at an affordable price.
Not Yet Reviewed
$4,607.95
Gear up for your next off-road adventure with complete Performance Package upgrades from Holley Off-Road. They deliver performance systems from exhaust to brakes, tuners, suspension, and more, and their products are engineered to work together, ensuring you have everything you need to have fun on and off the road. Holley Off-Road 2016-23 Toyota Tacoma performance packages give your vehicle a major performance boost in key areas like suspension and exhaust. The ADS Mesa front and rear shocks improve ride quality and control, making sure you're set up for a smoother, more stable drive whether you're cruising or off-roading, while the ADS tubular front upper control arms help with suspension strength and geometry, ensuring better handling and alignment for more precise driving. Making your vehicle really stand out is the Flowmaster Outlaw Extreme cat-back exhaust system that boosts your engine's output while giving you that unmistakable Flowmaster aggressive sound. Together, these parts work in sync to improve how your vehicle handles, performs, and sounds, creating a more exciting and capable driving experience. Enhance power, control, and style with the expertly crafted components in a Holley Off-Road performance package. Features: * ADS Mesa 2.5 front shocks: The large bore 2.50 in. shock body increases fluid capacity, effectively resisting shock fade to boost off-road performance. Fully rebuildable. * ADS Mesa 2.5 rear shocks: Internal floating piston (IFP) ensures consistent damping performance, improved responsiveness, and increased longevity and reliability. * ADS tubular front upper control arms: Accommodate lifts to 4 in., correct camber and caster for a smoother ride, and are fully rebuildable, making them a sustainable and long-lasting upgrade. * Flowmaster Outlaw Extreme cat-back exhaust systems: Features Outlaw Series muffler for a deep powerful sound and increased performance.
Not Yet Reviewed
$3,448.95
Holley offers performance packages for 2018-2021 2-door Polaris RZR Turbo S models, designed to enhance power, handling, and safety for your off-road adventures. Each package is expertly curated with top-tier aftermarket parts from the most trusted names in the industry, including XDR, Simpson, ADS Racing Shocks, and more. No guesswork. No compromises. Just proven upgrades designed to transform your UTV into a trail-dominating machine. Whether you're a weekend warrior or a hardcore off-road enthusiast, Holley's UTV Performance Packages can give you the confidence to push further, ride harder, and perform better! Features and benefits: * High-flow intake and exhaust systems—boost horsepower and torque with improved airflow and aggressive sound * Performance suspension upgrades will allow you to tackle the toughest terrain with smoother rides, better control, and more travel * Seats and harnesses—stay safe and locked in when the ride gets rough * Premium seating and multi-point harness systems keep you secure and comfortable through high-speed runs, sharp turns, and uneven terrain * Bulletproof durability components—built to withstand harsh conditions, extreme use, and everything the trail throws your way * Each kit is engineered for easy installation, so you can spend less time in the garage and more time exploring
Not Yet Reviewed
$3,961.95
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