Ark Performance N-II Cat-Back Exhaust System for 2013-2021 Subaru WRX STI(SM1304-0115N) 2523 The EVO5008 is the starting

The EVO5008 is the starting point of the first

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Ark Performance N-II Cat-Back Exhaust System for 2013-2021 Subaru WRX STI(SM1304-0115N) 2523 The EVO5008 is the startingN II 304 SS Cat Back Exhaust System with Single Rear Exit (SM1304 0115N) by ARK Performance. Exhaust System Type: Cat Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. The ARK N II cat back exhaust system offers straight through technology, offset tip design, and large piping diameter. All of this creates a deep, throaty exhaust note while maximizing power output. This is great for high horsepower