DESCRIPTION

Step into serious performance with the MBRP Armor Pro Series Single Exit Cat-Back Exhaust for the 2011–2021 WRX and STI sedans. Featuring a race-inspired design and MBRP's premium T304 stainless steel construction, this system delivers raw tone, smoother flow, and top-tier durability. With a mirror-polished single 5-inch outlet tip, this exhaust adds an aggressive aesthetic while helping reduce backpressure and increase power. Whether you daily drive, show, or track your WRX or STI, this single exit setup offers a balanced blend of function and form.

WHY?

This system is built for enthusiasts who want lighter weight, improved flow, and a more purposeful, motorsport-style setup. MBRP’s T304 stainless steel resists rust and corrosion in any climate, from salted roads to desert heat. The race-leaning exhaust tone is aggressive without being overwhelming, and the mandrel-bent design improves flow by up to 34%. Backed by dyno testing and real-world tuning, this is the exhaust that gets the most from your bolt-ons. Install is fully bolt-on and direct fit, with all hardware included there is no cutting, no welding, no hassle.

FEATURES:

Fits 2011–2021 Subaru WRX Sedan and STI Sedan
Lightweight, race-inspired single exit design with polished 5-inch tip
T304 stainless steel for maximum rust resistance and durability
Up to 34% increase in exhaust flow with smooth mandrel bends
Bolt-on installation with all hardware and OEM hanger compatibility

COMPATIBILITY

2011-2021 WRX

2011-2021 STI

2008-2014 Subaru STI

LowerClass Garage Front Brace Bar 2008-2014 WRX/STI

MBRP Armor Pro Series Single Exit Catback w/ Burnt Tip 2011-2021 WRX/STI

MBRP Armor Pro Series Single Exit Catback w/ Carbon Fiber Tip 2011-2021 WRX/STI

MBRP Armor Pro Series Single Exit Catback w/ Polished Tip 2011-2021 WRX/STI Sedan