I have a 2003 carrera 4 manual and am keen to have a more bassy exhaust. Am thinking of getting a muffler with bypass tube welded to give more sportier note. Can't afford the £4030 my Cambridge OPC are asking for a switchable system. Have seen some on eBay and plan is also to keep original muffler to switch back if selling in future I am however planning some trackdays, nearest for me either Bedford 101dB and Rockingham 105 dB limit. Would I be ok with the bypass system? Or would I not pass the static and drive by sound meter[/quote]
Discussion summary
YOUR RESEARCHAre PSE type bypass exhausts too loud for trackdays
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
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1 matching discussions · 2 captured posts examined · 0 partial discussions
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
2 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
- 911uk: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
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Generation: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
You'll be fine, infact considerably under even at Castle Combe & Donnington.
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