This axleback system is a direct bolt-on upgrade for the VA Chassis STI, replacing the restrictive 13.5lb factory mufflers with TIG-welded, mandrel-bent T304 stainless steel piping for improved flow, sound, and weight savings.Featuring 4" single wall tips,
This axleback system is a direct bolt-on upgrade for the VA Chassis STI, replacing the restrictive 13.5lb factory mufflers with TIG-welded, mandrel-bent T304 stainless steel piping for improved flow, sound, and weight savings.
Featuring 4″ single wall tips, this version offers a bold, clean look. With 18 total configurations availableranging in muffler size and tip finishtheres an option for every sound and style preference. Check the vehicle page to explore more.
Key Details:
Direct fit to OEM midpipe (not compatible with SPT midpipe)
Dual 2″ piping = flow of a 3″ straight pipe
Estimated gains: +10hp / +11ft-lbs torque
T304 stainless construction, laser-cut flanges
Includes hardware kit for easy install
Fits 2018 STi Type RA and 20192021 STI sedans
Balanced tone, weight savings, and noticeable performance improvementstailored to your build
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