LS3 ITB Kit, Rectangle Port, With Carbon Scoop/Plenum

Complete Bolt on ITB kit for  GM LS series V8 engines (Rectangle port)

This is a complete bolt on kit that will fit ALL LS series GM / Chevrolet engines with Rectangle port heads. LS3/L98 etc

Maintains all standard equipment such as TPS, IAC, fuel rail and injectors. Also comes with high mounted fuel rail option to run secondary injectors or NOS etc.

This kit comes standard with cable throttle (same fitment as LS1) but kits can be supplied with DBW actuator by special request. VIDEO

Our testing has shown this kit to produce large Hp gains over the standard intake with NO loss to mid range torque or power. With proper setup and tuning this drives just like an oem tuned vehicle with perfect driveability, starting and idle control.

Note this kit includes the pictured backing plate and FRP-carbon fiber airbox / scoop. See our other listing for kits with basic open trumpets if the scoop is not needed.