GSC Power-Division 21-4N Single Intake Valve-34.6mm (+1mm) (gsc2074-01) FITMENT_INFINITI Mach Force XP 409 SS

Mach Force XP 409 SS Axle-Back Exhaust System with Split Rear Exit (49-43085-B) by aFe

Reduces Body Roll & Improves Handling

Fixed dampening for Skunk2 lowering springs

Power improvements will be fully realized once the factory DME makes all the necessary “adaptation” requirements which occurs after a series of hard pulls on the dyno or full throttle runs (at your local race track of course)

4x 1/8-inch NPT and 3x 1/4-inch NPT Accessory Ports

GSC Power-Division 21-4N Single Intake Valve-34.6mm (+1mm) (gsc2074-01) FITMENT_INFINITI Mach Force XP 409 SSWhen creating our new valve line we set out to create the best performance, longest lasting valves available to the aftermarket. Using advanced 3D design and simulation software, we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the highest flowing valve head available on the market today. With the materials used, we have less valve distortion at the