Made from space-age polymer plastic, the new FAST™ LSX multi-piece component intake manifold shows a 20 horsepower increase on the General Motors LS1 engine and 15 horsepower on the Corvette LS6 engine, with no loss of drivability or low rpm torque. Best of all, the FAST™ space-age plastic polymer intake is 30 percent stronger than the stock polymer unit. Unlike aftermarket aluminum intakes, the FAST™ polymer intake avoids becoming a power robbing heat sink. 

The LSX comes with integrated nitrous oxide injector ports.  In addition, the LSX manifold has the capability to be ported and is easily accessible as a result of the multi-piece design. 

Unlike other resellers, we keep these in stock at our facility! 

**This intake manifold will require an LS2-style fuel rail.  If you have an LS1/LS6 vehicle, it will require the use of FAST #146021-KIT fuel rail kit.  This kit will include the fuel rail and necessary spacers to run your factory LS1 fuel injectors.  Intake gaskets are not included with the manifold.**