Invidia N1 Cat-Back Exhaust for 2015+ WRX/STi (HS15STIGTT) Powerslot The stratifying process starts after

The stratifying process starts after just a few deep discharges of the battery

SCAT also provides an extra oiling provision hole on the top of the rod allowing for better lubrication at high rpms

It is a direct-fit replacement and offers significant horsepower and torque gains without compromising mid-range power output

• E85 compatible

Invidia N1 Cat-Back Exhaust for 2015+ WRX/STi (HS15STIGTT) Powerslot The stratifying process starts afterThe Invidia N1 dual exit cat back exhaust for 2015 2021 Subaru WRX and STi is is constructed with 76mm polished 304 stainless steel with burned blue titanium tips. Hangers are designed for an OEM replacement fit and includes all necessary gaskets, hardware and removable silencers. Engineered to produce strong mid to top end power gains, as well as provide an increase in horsepower and torque with that aggressive Subaru rumble. Vehicle Fitment: 2015