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Boxster heat shields. How important are they? - Page 1 - Boxster/Cayman - PistonHeads UK

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YOUR RESEARCHBoxster heat shields. How important are they? - Page 1 - Boxster/Cayman - PistonHeads UK

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Install home modified exhaust

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Performed · outcome unconfirmed · Original poster

Fitted a home modified exhaust with by-pass flaps to my 03 986S over the week end.

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Boxster heat shields. How important are they? - Page 1 - Boxster/Cayman - PistonHeads UK
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Leading evidence: 'Install home modified exhaust' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Install home modified exhaust' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Install home modified exhaust

No successful repair reported for this finding.

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Discussions that performed work without a confirmed outcome
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Performed · outcome unconfirmed · Original poster

Fitted a home modified exhaust with by-pass flaps to my 03 986S over the week end.

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Boxster heat shields. How important are they? - Page 1 - Boxster/Cayman - PistonHeads UK
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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.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • PistonHeads: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

Fitted a home modified exhaust with by-pass flaps to my 03 986S over the week end. Getting clearance for the heat shields was a pain. I did it but there are some gaps as it didnt go together as well as it originally was. Should I get some silver alloy tape and seal all the little sections up or is it OK?

POST 2Original post

The exhaust system emits a lot of heat. The engine is in a rather enclosed and poorly ventilated area. That is the downside of a mid-engine car. My best advice would be you should seek to duplicate the factory heat shielding as close as possible. You want to keep the heat from "cooking" the engine and engine compartment wiring and hoses and any plastic panels or body parts (like the rear bumper cover).

POST 3Original post

Make it good, the heat shields are there for a good reason. Catalysts light off (exotherm) at about 650degC, so soon after you start up and dive down the road the inside of the catalyst is happily sat there at 650degC. The radiant heat from the insulated catalyst brick is significant. Cane you car for a long time at high speed and/or load and the exhaust will glow cherry red. You need the heat shields, you need then to fit.

POST 4 / ORIGINAL POSTEROriginal post

Thanks Guys, Didn't realise the cats get so hot, im worried now. I will drop-off the bumper and make sure its all there and sealed.

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