Perrin Performance Axle Back Exhaust for 2015-2025 WRX & 2015-2021 STI Stainl...

PERRIN Performance Axle Back Exhaust for 2015–2025 WRX & 2015–2021 STI Upgrade sound, style, and durability with the PERRIN Performance Axle Back Exhaust designed specifically for 2015–2025 Subaru WRX and 2015–2021 STI models. Engineered for an aggressive, refined tone without drone, this axle-back system enhances both performance and appearance. All stainless-steel construction for corrosion resistance and long service life 4.5" slash-cut exhaust tip adds a bold, finished look to the rear profile Designed for fitment — direct bolt-on installation using factory mounting points Balanced sound tuning — sporty, deep tone under acceleration while maintaining comfort at cruise Improved flow to complement bolt-on power upgrades and free-up exhaust restrictions Perfect for enthusiasts seeking a factory-quality upgrade with motorsport pedigree, the PERRIN axle-back is a popular choice for street and track. Backed by precision engineering and durable materials, it delivers reliable performance and an aggressive aesthetic. Fitment: 2015–2025 Subaru WRX, 2015–2021 Subaru WRX STI.