The 2015-2021 WRX & 2015-2018 STI catback from Nameless Performance builds on a legacy of exhaust R&D to deliver a bolt-on, factory-fit system featuring muffler delete and 3.5″ double wall tips. Hand built in Washington, this system is configurable to your desired sound and style, engineered for perfect fitment and lasting durability.

Key Features:

• Torque-optimized 3″ main circuit with a matched 2.25″ Y-pipe feeding dual 2″ rear circuits, providing superior midrange torque over oversized designs

• Demonstrated midrange gains of +32 ft-lbs torque and +22 HP at the wheels beyond a Stage 1 tune on EJ series engines

• Dual 2″ rear circuits significantly reduce low-frequency cabin drone common in oversized exhausts, while retaining an aggressive tone

• Constructed from 100% T304 stainless steel including flanges, tubing, hangers, and perforated muffler tubing

• Mufflers removed for a freer flowing, more aggressive exhaust note with a compact system profile

• Hand TIG welded by expert fabricators with 40+ years of experience in the Pacific Northwest

• V-band clamp assemblies secure non-factory connection points for a tight, adjustable fit

• Front connection uses a conical 3″ flare with a proprietary donut gasket for easy attachment to factory or aftermarket downpipes

Fitment:

• Fits 2015-2021 Subaru WRX (DIT engine) and 2015-2018 STI (EJ series engine)

• Direct bolt-on replacement, no modifications necessary

Installation:

• Complete hardware kit included for a straightforward bolt-up install

• Factory-style connections with latch-over V-band clamps ensure secure, adjustable assembly