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An LS engine swap is a no-brainer when it comes to adding some affordable horsepower to a project car. Unfortunately, any swap comes with its share of headaches, including wiring—and that's where Top Street Performance standalone fuel injection wiring harnesses come in. TSP offers three harnesses for drive-by-wire/drive-by-cable applications and they include a fuse block and all the connectors for a headache-free install. Order the harness recommended for your system.
Not Yet Reviewed
$444.44
Earl's Performance LS steam vent kits eliminate trapped air and steam from your engine to prevent hot spots and overheating. They offer a selection of these LS power plumbing kits, with the appropriate braided stainless steel Speed Flex hose with hose ends that make installation easier and much more attractive than OEM hard lines. Plus, they provide more flexibility when you're using aftermarket intakes and other accessories on performance vehicles. The kits are available in front and 4-corner plumbing options, with adjustable anodized aluminum steam vent adapters and/or distribution blocks. Plumb your LS for performance with Earl's steam vent kits.
( 5 )
$299.95
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$349.95
JET Powr-Flo throttle bodies are direct replacements for factory units, and can be used to replace a worn-out throttle body or to upgrade your existing throttle body. They provide increased airflow for improved throttle response by taking advantage of JET's unique inlet design, and they include all new pre-installed calibrated electronics to allow for a simple "remove and replace" installation. JET Powr-Flo throttle bodies increase air velocity to the intake manifold, improving throttle reaction and provide horsepower throughout the entire rpm range. Order the JET Powr-Flo throttle body compatible with your vehicle.
( 108 )
$389.96
On Sale
PRW Q-Jet carburetors are manufactured with all new components. They are a significant upgrade to stock GM carburetors for most GM automotive applications. Every carburetor is designed with precision engineering and cutting-edge features and are equipped with PRW's industry first lean/rich adjustment allowing 15% +/- main circuit adjustment to allow for precise tuning with ease. They are available in 750 cfm for GM cars and trucks with engine sizes ranging from 283-350 cu. in. and 800 cfm for GM vehicles with engine sizes ranging from 350-455 cu. in.—both applications work well with a mild cam or headers for optimum street performance. Choose the PRW Q-Jet carburetor designed for your application needs. Key features: * All new—not rebuilt, or remanufactured * Available for 750 and 800 cfm applications * Industry first Lean/Rich adjustment allowing up to 15% +/- main circuit adjustment to allow for precise tuning with ease * Universal replacement for most GM automotive applications * Includes most required vacuum ports * Complete with a one-wire electric choke * Locally assembled and run-tested, with all gaskets, metering rods, jets and air bleeds made in the USA * Compatible with "C" and "U" style throttle linkages suitable for stock intake manifolds
Not Yet Reviewed
$699.89
$499.95
ACDelco GM Genuine Parts fuel injection throttle bodies are GM-recommended replacements for your vehicle's original component. It is located on the intake manifold, and contains the throttle plate(s) that control the air entering the engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems. These true OE fuel injection throttle bodies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
( 37 )
$262.99
FAST LSXR upper intake shells are constructed from advanced polymer material that offers a host of benefits over aluminum aftermarket intakes—including lighter weight, increased strength, and improved heat-dissipating characteristics. These replacement shells are compatible with FAST LSXR 102mm, LS, L99, L92, and L76 intake manifolds found on hundreds of vehicles. Order the model recommended for your application.
Not Yet Reviewed
$497.95
Adding some extra horsepower to your engine, especially in racing applications, is often the job of a nitrous oxide system. Now you can quickly upgrade to a dual-stage package compatible with several Nitrous Express systems which are pre-machined with a second set of fuel and nitrous passages. These dual-stage kits allow you to boost power in stages to soften the punch of the nitrous, limiting excessive tire spin or violent chassis reaction. The Nitrous Express dual-stage upgrade for dual-stage throttle body plates kit includes: * Set of Lightning fuel and nitrous solenoids * Solenoid brackets * Billet Y fitting * Braided stainless steel lines * Plate fittings * Solenoid fittings and jetting for 50, 100, 150, 200, 250, 300, 350, and 400 hp
Not Yet Reviewed
$556.89
The engineers at FAST teamed up with the airflow specialists at RHS to develop a 3-piece, polymer intake manifold. They are constructed from a proprietary advanced polymer material that offers a host of benefits over aluminum aftermarket intakes, including lighter weight and improved strength and heat dissipating characteristics. While they feature a 102mm air inlet that is perfectly suited to the FAST Big Mouth 102mm throttle body, they can also be used with stock or aftermarket 90mm or 92mm throttle bodies. Other features include integrated nitrous bungs and perfect bolt-on fitment that allows for the use of factory accessories without modifications or clearance concerns. FAST LSXR intake manifolds' 3-piece modular design allows for easy disassembly and porting. This new design gives you the ability to remove individual runners from the manifold for modification.
( 26 )
$450.95
Nitrous Express 102mm LS nitrous plates bolt between the throttle body and intake, making installation quick and simple. The 4-bolt plates are also pre-machined with a second set of nitrous and fuel passages—so making the upgrade to a dual stage system is extremely easy by adding part number NX933D for a second stage. Order the plate model recommended for your year/make and engine application.
Not Yet Reviewed
$326.78
The Nitrous Express LS 102mm plate conversions feature a billet nitrous plate that fits all LS engine series intakes. These plates bolt between the throttle body and intake, making installation quick, easy, and attractive. The plates are pre-machined with a second set of nitrous and fuel passages—so you can easily upgrade to a dual-stage system later on. Order the nitrous oxide plate recommended for your vehicle and engine application.
Not Yet Reviewed
$405.50
Ready to race? Nitrous Express LS plate conversion kits are an absolute "bang for the buck" power adder. You'll have the pills to jet, dyno tunes for each setting, and increased horsepower to the wheels. These kits feature billet plates with bolts to attach cleanly between the throttle body and intake. The conversion comes as a single-stage system; it includes jetting for multiple conversions, nitrous line, and rubber O-ring. You can trust Nitrous Express technology for the ultimate in atomization and distribution.
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$405.50
Eliminate your restrictive factory air box, filter, and intake tube. In their place, install one of the Volant MaxFlow 5 closed box air intake kits. They house a MaxFlow 5 oiled cotton gauze air filter that is cleanable and reusable. As an enclosed system, the air intake keeps your engine quiet at cruising speeds, but still allows it to roar to life when you stomp on the gas. This design protects the filter and ensures that colder air is pulled in from the fender instead of the engine bay—resulting in more horsepower and torque. These intake units are factory-tuned, and everything you need for installation is included. Volant MaxFlow 5 air intake kits are available for fitment on a variety of makes and models.
( 171 )
$329.90
GMB electric in-tank fuel pumps are tested for function and performance. Built to OE specs under strict manufacturing guidelines, they work and look just like the factory sending unit. Malfunctioning fuel pumps deplete the effectiveness of your engine and your vehicle as a whole. GMB pumps are built to feed fuel from the tank and transfer a constant flow of fuel to the engine, while controlling pressure to prevent flooding. Order the replacement model designed for your year, make, and model application.
( 10 )
$263.99
Summit Bucks
Delphi fuel pump module assemblies are nickel plated with all-steel internal components. They feature internal guide rod springs and external rubber feet for enhanced stability and reduced noise from vibration. These fuel pumps have little flow or pressure variation in hot fuel situations. Delphi fuel pump modules are designed to be OE replacements.
( 250 )
$293.99
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$364.99
Carter OE replacement electric fuel pumps are manufactured in a plant that is TS16949 certified and provides the absolute latest in OE-quality certifications. This dedication to excellence, combined with in-depth OE experience, results in products that provide dependable performance that meet or exceed expectations. Carter OE replacement electric fuel pumps feature: * Factory-specified pressure and flow * OE-matched electrical connections * Accurate diameter and length * Original inlet and outlet positions * 100 percent factory-tested reliability * Roller vanes, which are more contaminant-tolerant than other designs * Carbide and brass bearings instead of plastic for longer life and smoother operation
( 181 )
$365.99
Dorman intake manifolds are precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. They are thoroughly tested to ensure top-quality OEM construction and superior reliability. Dorman manifolds are offered in different styles, and all will provide a trustworthy design with a perfect fit and reliable construction for your vehicle.
( 157 )
$291.95
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