Exedy 2015-2016 Subaru WRX Aero H4 Lightweight Flywheel Fuel Rails optimized when used with NGK

optimized when used with NGK Spark Plugs

Customizable Spring Stiffness

Unique single 3” to dual 3” catback design for the FE1 Si & DE4 Integra

Utilizes factory style flange and hangers for a secure fit

Exedy 2015-2016 Subaru WRX Aero H4 Lightweight Flywheel Fuel Rails optimized when used with NGKFITS: 2015 2016 Subaru WRX EXEDY Lightweight Flywheels combine low weight, low inertia and high thermal capacity. They are designed for light to moderately tuned racing cars for drag racing, autocross and rally events, as well as street usage. They are made from solid one piece billet chromoly steel or chromoly steel forgings. They are specifically designed to reduce weight and inertia for better engine response. Most incorporate special design