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I'm thinking about wrapping my exhausts.
Reasons? On my petrol ICE the CAT stays too cold during P&G EOC
On my Prius the engine sometimes runs for no apparent reason (like when stopped at a traffic light while fully warmed up). I suspect it could be to do with CAT temps.
On my diesel to help improve DPF regens.
On my turbo ICE to gain a little 'free' energy to spool the turbo at lower RPM.
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