2021 Audi S4 Fuel Injectors, Fuel Rails & Components
- Original (OEM)Fuel System PartsThe fuel system is one of the critical systems of any vehicle. It consists of the fuel tank, pump, filter, and injectors or carburetor that are responsible for supplying your vehicle's heart with the right amount of fuel at the right...
- Standard®Fuel Injector Seal KitAudi S4 2021, Fuel Injector Seal Kit by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...Designed as a replacement for your worn-out fuel system partWill help optimize your vehicle’s performance and fuel efficiency$37.06
- DeatschWerks®Fuel InjectorsFuel Injectors by DeatschWerks®. Every set of fuel injectors is flow-matched and balanced for reliable and efficient performance. To ensure you get nothing less than the highest level of quality and durability, every product is...Improves fuel flow and performanceMulti-point dynamic set matching$379.00 - $1,589.00
- Holley®Injector HarnessInjector Harness by Holley®. Holley Performance Products has been the undisputed leader in fuel systems for over 100 years. Holley's products include carburetors, fuel pumps, fuel injection, intake manifolds, and much more. From start...Ti-VCT Cam control down to 400 RPM4 Built in Diagnostic LEDS make diagnostics easy in the event of a cam or crank sensor failure$129.95