SPT Midpipe Axle Back 3.5" Single Wall Polished Tips and No Muffler

• 2015–2021 Subaru | WRX STI
• 2015–2021 Subaru | WRX

 *NOTE This does not fit the 2019 STI or the Type RA Exhaust. 

Responding to high demand, Nameless Performance developed this axleback to replace the underwhelming STI Performance/SPT exhaust. The stock system offers minimal sound down low, a droning midrange, and goes quiet at high RPM—not exactly what enthusiasts expect from a performance exhaust.

This muffler delete setup solves that, delivering a deeper tone at idle, no drone at cruise, and an aggressive note above 4500 RPM—all while retaining compatibility with the SPT midpipe.

Key Features:

• Direct fit for SPT midpipe (STI Performance exhaust)

• 3.5" single-wall polished tips

• T304 stainless steel, TIG-welded

• CNC mandrel-bent tubing

• Bolt-on install with factory-location hangers

• Made in the USA (Woodland, WA)

Performance Gains:

• Enhanced sound and throttle response

• Eliminates drone in the midrange

• Weight savings of 23.3 lbs over stock

• Gains of ~8–12 ft-lbs torque on the STI

An easy upgrade that dramatically improves both sound and driving feel, without compromising fitment.

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