LSXr Manifold, LS3 Intake 102mm Rectangle/Square Port, Fits GM LS2, LS3 L98 L99 L92 L76 | 6.0L 6.2L

146102B FAST LSXR Manifold - FAST LS3 intake suits Rectangle/Square ports (not cathedral ports)

102mm Rectangle Port LS3 / LS9 / L76 / L92 / L99  Intake Manifold

FAST intake engineers teamed up with airflow specialists at RHS™ to develop a polymer intake manifold for rectangular port for the LS3 engines. Testing this Fast intake on a stock LS3 engine with a Big Mouth 102mm Throttle Body™ produced gains of 14+ horsepower and 11+ ft/lbs of torque at the flywheel over the stock LS3 intake. The LSXR manifold utilised a 102mm throttle body & features a three-piece modular design that you can easy disassemble for cleaning & porting. Fast Intake has had extensive testing & an intake runner design that is longer and less restrictive. Also the FAST LSXR manifold gives the user the ability to remove individual runners from the manifold for modification.

*CAN USE OEM FUEL RAILS - need injector spacer kit SKU: 146025-KIT

*CAN USE FAST BILLET FUEL RAIL KIT:

• RED      FAST   SKU:  146027-KIT  
• BLACK  FAST   SKU:   146027B-KIT  

*FUEL LINE CONNECTOR KIT - BRAIDED FUEL LINES

• FAST SKU: 54028-KIT

*FUEL PRESSURE GAUGE

• FAST SKU: 54027

TYPE:  LS3 Intake ManifoldsTHROTTLE BODY INLET BORE:  102mm

MATERIAL:  Polymer

PORTING ABILITY:  Yes

EGR:  Yes

NITROUS BUNGS:  Yes

FUEL RAIL FITMENT:  Factory and Aftermarket