Fidanza Aluminum Flywheel STI (2004-2018) Infiniti PERRIN Performance silicone couplers are

PERRIN Performance silicone couplers are standard with PERRIN intercooler kits

and you can see how the final designed turned out

it's too loud for you

Many competitors leave their air filters under the hood or rely on the factory scoop to push air over the filter

so you don’t have to worry about rust on your hardware

Fidanza Aluminum Flywheel STI (2004-2018) Infiniti PERRIN Performance silicone couplers areFor the Subaru STI, Fidanza Aluminum Flywheels are made from 6061 T6 billet aluminum for superior strength and weight reduction. Fidanza flywheels are CNC machined at a constant speed for precise fit and finish, and feature a replaceable 1045 high carbon steel friction plate with AN military grade fasteners and a hardened 1050 ring gear. You will never have to replace your flywheel again as you can just swap friction plates, and reinstall. All these