The new Performance Design XS LS3 intake manifold breaks the mold of LS under-hood intake manifolds by expanding the plenum to allow for the ideal runner length and shape. This necessitates moving the fuel rails inside the intake manifold, presenting new engineering challenges.

The result is increased horsepower AND torque on a stock LS3 with greater gains on more aggressive engines. The injection-molded nylon intake manifold, billet fuel rails and carbon fiber trim is offered at an impressive $999.99! 

Delivery in the second quarter of 2023.  Pre-order yours today at:
https://shop.performancedesign.com/xs-ls3-intake-manifold-p29.aspx

XS LS3 Discussions

See what others have to say about XS LS3 Intake Manifold:

Editorial:
MotorTrend/Hot Rod 
Engine Labs / LSX Magazine 
Press Releases:
Competition Plus
GM EFI
Forums:
Corvette Forum Discussion