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Toyota Supra (MK4) Exhaust FAQ's

Please read our FAQs page to find out more.

What exhaust diameter works for a responsive street MK4?

A well‑muffled 3–3.5‑inch system supports strong power with minimal drone. Very high output builds step to larger tubing with appropriate resonators.

How do I tame drone in a targa‑top MK4?

Resonators, Helmholtz chambers, and quality mufflers curb low‑RPM resonance. Rear cabin damping helps on open‑roof cars.

Do I need a tune after exhaust changes on a MK4?

Cat‑back only generally doesn’t. Pre‑cat, downpipe, or turbo housing changes benefit from calibration to keep trims and boost control in range.