Exhaust

Downpipes, cats, sound, legality.

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Share setups that keep the car civilized in comfort but open up properly. Include: valves/resonators/downpipes + drone n...

If you’ve done downpipes: did it actually improve response, or just sound? Any issues with smell, codes, heat management...

Opening discussion: Valve controller modules: worth it or gimmick? Share your real experience, diagnostics steps, or p...

Opening discussion: Catback choices: what’s too loud for long trips? Share your real experience, diagnostics steps, or...