Perrin Equal Length Header WRX (2015-2018) Wheels but with a 15-20% higher

but with a 15-20% higher torque capacity

Available in 20mm

You will also benefit from the more direct connection between your 2002-2007 WRX's body and rear suspension delivering more predictable dynamic behavior

These coilovers are a complete twin-tube design setup

the OEM TMIC fluctuated between 35-75F

Perrin Equal Length Header WRX (2015-2018) Wheels but with a 15-20% higherIncrease power and torque through quicker turbo response and a more efficient collector design with the PERRIN Equal Length Header for the 2015 2017 WRX. Instantly increase turbo response and add 15 20 wheel horsepower and 20 ft lbs of torque with the PERRIN Equal Length Headers. This part is perfectly safe to install and does not required an ECU tune. Dyno graph shows results of a 2015 WRX with typical bolt ons (3 inch turbo back exhaust and no ECU