Air and Fuel DeliveryBest SellersFuel DeliveryFuel RailsIn Stock ProductsMost Popular ProductsPerformance Parts
FAST LSX/LSXR/LSXRT Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume, ensuring that your injectors never run...
Air and Fuel DeliveryBest SellersFuel DeliveryFuel RailsIn Stock ProductsMost Popular ProductsPerformance Parts
FAST LSX/LSXR/LSXRT Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume, ensuring that your injectors never run...
Air and Fuel DeliveryBest SellersEngine and Engine PartsEngine ComponentsIn Stock ProductsIntake ManifoldsMost Popular ProductsSystem Kits
FAST has developed the industry’s first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspirated engines. Available for...
Air and Fuel DeliveryBest SellersEngine and Engine PartsEngine ComponentsIn Stock ProductsIntake ManifoldsMost Popular ProductsSystem Kits
The FAST LSXHR 103mm Intake Manifold is ideal for generating maximum power in boosted and naturally aspirated GM LS cathedral port engines. It ships...
Air and Fuel DeliveryBest SellersEngine and Engine PartsFuel Components MiscFuel DeliveryIn Stock ProductsMost Popular Products
FAST XFI Fuel Injector Harnesses connect the XFI ECU to the fuel injectors. These harnesses are designed to aC-Commodate most common V8 engines from...
Air and Fuel DeliveryBest SellersEngine and Engine PartsEngine ComponentsIn Stock ProductsIntake ManifoldsMost Popular Products
Replacement parts available. See 54039BUS for the upper shell. See 54039BLS for lower shell. Billet fuel rails available under 54023. Compatible throttle bodies available...