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)

• 5″ Mufflers

• 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