aFe Magnum FORCE CAI Silicone Coupling Kit (4in. ID to 3.5in. ID) 2.75in L Straight Reducer - Black 2011-infiniti-g37-sport-esi8950678 Heavier Spring & Larger Diaphragm:

Heavier Spring & Larger Diaphragm: Keeps wastegate valve seated longer which maintains power

The replaceable bearings are Teflon lined for minimum friction

Advan RSIII - 19X9

For EFI applications use regulator P/N 13305 or P/N 13134

aFe Magnum FORCE CAI Silicone Coupling Kit (4in. ID to 3.5in. ID) 2.75in L Straight Reducer - Black 2011-infiniti-g37-sport-esi8950678 Heavier Spring & Larger Diaphragm:The high temperature 1 Ply reinforced silicone hump reducer coupler is designed to connect to a (3 1 2" x 4")OD tube and is 3" long. Standard stainless steel worm gear #052 & #060 clamps provides tight connections, durability and is corrosion resistance for industrial, commercial, truck, off road and racing applications. Not For Use on Pressured Size Or Supercharged Turbocharged Apps. Stainless Steel Worm Gear Clamps Provides Tight Connections Worm