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Underbody view of a red Toyota GR86 on a hydraulic shop lift, showing the installed Valvetronic Designs SHUTO valved sport exhaust system with routed mid-pipe, transverse rear muffler, and dual exhaust tips exiting through the rear bumper diffuser.

Boosting the Boxer Tone: The Ultimate Exhaust Guide for Toyota GR86, Subaru BRZ, and Scion FR-S
Boxer four-cylinders are notoriously tricky to tune acoustically: get it wrong and you get unbearable cabin drone and tinny rasp;...
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Valvetronic Designs Blog Posts
A Taste of Tokyo: Introducing the SHUTO™ Valved Sport Exhaust

A Taste of Tokyo: Introducing the SHUTO™ Valved Sport Exhaust
Most aftermarket catbacks for the Toyota GR86, Subaru BRZ, and Scion FR-S sound aggressive under throttle, but ruin daily driving...
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Valvetronic Designs Blog Posts
Popular Posts
Underbody view of a red Toyota GR86 on a hydraulic shop lift, showing the installed Valvetronic Designs SHUTO valved sport exhaust system with routed mid-pipe, transverse rear muffler, and dual exhaust tips exiting through the rear bumper diffuser.

Boosting the Boxer Tone: The Ultimate Exhaust Guide for Toyota GR86, Subaru BRZ, and Scion FR-S
A Taste of Tokyo: Introducing the SHUTO™ Valved Sport Exhaust

A Taste of Tokyo: Introducing the SHUTO™ Valved Sport Exhaust
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