Invidia R400 Cat Back Exhaust Subaru WRX 11-14/STI 08-14 (Hatch)

This Invidia R400 cat-back exhaust is listed for the 2011-2014 Subaru WRX and the 2008-2014 WRX STI hatch. Invidia calls the R400 its most popular system, designed to fill the sound gap between its Q300 and N1 with an aggressive note and less harsh cabin noise at highway speeds. The muffler balances unrestricted exhaust flow against sound dampening, and Invidia says the note stays pronounced across the rev range even on a cat-back only. A route with minimal bends is intended to ease restriction and turbulence, which Invidia says supports gains in horsepower, torque and throttle response.

Features

• R400 muffler with an aggressive, pronounced note
• Sits between Invidia's Q300 and N1 for sound
• Aims to limit harsh cabin noise at highway speeds
• Pronounced note across the rev range, even as a cat-back
• Race-inspired muffler design
• Pipe route planned with minimal bends
• Invidia quotes gains in power, torque and throttle response

Specifications

• Brand: Invidia Exhausts
• Product Type: Cat-Back Exhaust
• Series: R400
• Muffler: R400 muffler, race-inspired design
• Sound: Aggressive note; less harsh cabin noise at highway speeds
• Part Number: HS08STI5GM4ST

Vehicle Compatibility: 2 applications across 1 make. Select a make to view.

Please confirm fitment against your vehicle before ordering. Contact us if you need help selecting the right part.