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MAZDA Air & Fuel Delivery

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Quick Fuel Q-Series 4-Barrel Carburetors

Get big-time performance with Quick Fuel Q-Series 4-barrel carburetors with high-flow main bodies, which include either down-leg or annular boosters, screw-in idle and high-speed air bleeds, accelerator pump discharge nozzles, and a blended venturi area. These carburetors have CNC-machined billet metering blocks with 4-stage emulsion to provide more precise fuel metering, improve throttle response, and give a more uniform fuel performance curve. With so many great benefits and their blend of performance and drivability, it's no wonder that these Quick Fuel Q-Series carburetors are the popular choice. So, go ahead--throttle it up with Quick Fuel!

4.72 out of 5 stars ( 46 )

$1,399.95


$1,078.95

$1,449.95

Nitrous Express Piranha Nozzle Nitrous Systems

Space can be at a premium in some engine compartments. Nitrous Express Piranha nozzle nitrous systems are designed to deal with that problem and still give you big-time power increases. They're built around NX's compact, yet highly effective Piranha nozzles and can deliver from 100 to 250 extra horsepower for 4-cylinder engines (including the air-cooled Volkswagen). For sixes, the power jumps range from 150 to 375 horses, and V8s can get boosts of 200 to 550, or even 600 hp. The kits come with nozzles, delivery lines and fittings, jets, solenoids, wiring, switches, and mounting hardware.

3.0 out of 5 stars ( 1 )

$1,401.89

Nitrous Express InstaBOOST EFI Nitrous Systems

For drag racing applications, you need a big turbo to make big power, but along with the big power comes a big problem--turbo lag. These Nitrous Express InstaBOOST EFI nitrous systems have the cure for turbo lag woes. They are uniquely configured to come on strong to eliminate that dreaded turbo lag, but then ramp out the nitrous smoothly to let the mighty turbo do its thing. The end result is monster power with zero lag, even with a huge turbo. The Nitrous Express InstaBOOST EFI nitrous systems feature an adjustable 1-8 psi pressure switch to control the nitrous flow--it's sure to have you out of the hole faster than ever.

Not Yet Reviewed

$1,144.59

$1,285.16

On Sale

Quick Fuel QFX-Series Carburetors

These Quick Fuel QFX-Series carburetors feature an all-new die-cast aluminum main body, which has a lengthened venturi section for greater midrange torque and better airflow. The annular booster venturis are precision die-cast with CNC-machined billet aluminum inserts, providing smoother and more refined air entry, a stronger vacuum signal, less turbulence, and improved fuel emulsion for better combustion. The Quick Fuel QFX-Series carburetors use red anodized billet aluminum CNC-machined metering blocks featuring 3-circuit metering (gasoline carburetors), changeable emulsion, idle feed, and intermediate bowl and feed discharge. Next, the die-cast aluminum fuel bowl combines high strength with significant weight reduction. They feature dual threaded fuel inlets and outlets and dual sight glass holes to easily set the float levels. The Quick Fuel QFX-Series carburetors feature Quick Fuel's external linkage with four different links to select the amount of primary throttle opening before the secondaries open: moderate progressive (25 percent), medium progressive (40 percent), full progressive (50 percent), and 1:1.

4.86 out of 5 stars ( 7 )

$1,699.95


$1,528.95

Carter Direct Injection Fuel Pumps

Carter direct-injection fuel pumps offer improved engine efficiency and fuel economy. These high-pressure GDI fuel pumps are ideal for most combustion gasoline direct-injection engine programs and are 100 percent tested and approved. The GDI fuel pump is located outside the fuel tank and operates, as necessary, to complement the primary in-tank fuel pump. They ensure the vehicle is performing at maximum levels by better controlling the amount of fuel and injection timings that vary according to engine load. An integrated flow control valve and integrated over-pressure relief valve are included for precise fuel control, while the pump also features high-flow capability for larger engine applications. Choose the high-pressure gasoline direct-injection fuel pump designed for your vehicle.

Not Yet Reviewed

$1,088.99

$1,354.99

NOS Sport Compact Nitrous Oxide Systems

There's no reason why you can't give your sport compact a major power boost using the same sort of technology that the V-8 crowd has been for years. NOS has taken care of that with their Sport Compact nitrous-oxide systems. They can turn your mild-mannered ride into a fire-breather with a quick shot of 40-75 extra horsepower, with a dry system, or an even wilder 50-150 extra ponies with a wet system. The latter types are especially helpful to supercharged and turbocharged engines, which generate heavy doses of unwanted heat in the intake system. Kits come complete with the mounting brackets, nozzle, stainless-braided hose, fittings, jets, wiring, switches, and mounting hardware. Available with and without nitrous bottles.

Not Yet Reviewed

$1,299.95

Dorman Turbocharger Head Units

Dorman turbochargers head units restore drivability, as well as engine power and/or efficiency. These turbocharger and gasket kits are offer as direct replacements for the best possible fit and function in a wide number of applications. They are quality engineered from durable materials to eliminate grinding, whining, and other noise-related issues you would experience due to a faulty turbocharger. Dorman turbocharger and gasket kits include installation components, and on-vehicle testing was conducted to ensure trouble-free operation in your vehicle.

4.2 out of 5 stars ( 20 )

$1,287.95

Delphi Fuel Injection Pumps

Delphi fuel injection pumps feed your gas or diesel engine. Precisely delivered fuel keeps your engine running smoothly and provides the right amount of fuel to gain power. These Delphi pumps are built from quality materials and are validated by Delphi to ensure the best performance in your rig. Give your cylinders equal shots of fuel for better performance with Delphi fuel injection pumps.

Not Yet Reviewed

$1,262.99

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