FAST LSXRT 102mm Intake Manifold for 4.8L 5.3L 6.0L Cathedral Port LS Truck/SUV Engines LQ4 LQ9 L33 LM7 LMG LMF LH6 LC9 LY2 L20 LR4 L59

FAST LSXRT 102mm Black Intake Manifold for LS Truck/SUV Fits Head Castings 243 799 706 862 317 241 853 806 and aftermarket Cathedral Port Heads This LSXRT is a taller version of the popular LSXR, designed to fit with Truck & SUV accessory drive systems Designed specifically for GM 4.8L, 5.3L and 6.0L cathedral port truck engines and cathedral port LS1/2/6 applications where hood clearance is not a concern, the FAST‚ LSXRT‚102mm Intake Manifold follows the path chartered by the original LSXR Intake by featuring a modular design that allows for easy porting and disassembly and a runner design that yields an incredible 25 peak horsepower gain over the stock intake, on a stock 6.0L engine with a Big Mouth 102mm Throttle Body. The LSXRT is constructed from a proprietary precision injection molded polymer which offers many benefits, including lighter weight, greater strength and lower heat soak propensity. While it features a 102mm air inlet, it can also be used with stock 90mm or aftermarket 92mm throttle bodies (78mm three-bolt throttle bodies require an adapter plate). Other features include integrated nitrous bungs and precise bolt-on fit that permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues. Some GM truck models may require a 92mm or 102mm aftermarket throttle body. For Cathedral Port Cylinder Heads only - Will Not Fit Rectangular Port Cylinder Heads Designed for 90mm-105mm Throttle Bodies To use factory round 99-06 Fuel Rails, you will need FAST bracket kit #146030-KIT To use factory square 07-13 Fuel Rails, you will need FAST bracket kit #146031-KIT Can also be used with FAST Billet fuel rails #146028-KIT (Red) or 146028B-KIT (Black) Fits the following engines when used in Truck/SUV or high hood clearance applications: LS1 LS2 LS6 LY5 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM7 L59 LS4 LH8 LH9