FAST LSXR Mid-Range High HP LS3 Assembly - 146103B

These race design intake runners fit in our LS3 102mm intake manifolds. Provide excellent high rpm horsepower for heavily modified track oriented vehicles.CatalogUser 1

These high horsepower design intake runners fit in our LS3 102mm intake manifolds. Provide excellent mid-range and high rpm horsepower for modified street/track oriented vehicles.CatalogUser 1

This fuel injector spacer kit for LS3/L99 and L76 engines is designed to allow the use of OE fuel rails with our 146102B, 146103B and 146104B 102mm intake manifolds.User 1Catalog

This OE Rail kit for LS3 and LS7 engines includes factory rails and mounting brackets designed to mount an LS3/LS7 fuel injector to our 146202B 102mm intake manifold.User 1Catalog

O-Rings, LSXr LS3andLS7 Fuel Injector 10PKCatalogWarranty