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Old 19th March 2021, 10:55 AM
strummagnet strummagnet is offline
Join Date: Jul 2011
Location: Gosport
Posts: 83
Default Downpipe clearance at gearbox mount

Hi All,

After replacing near and offside downpipes with aftermarket BM units to my 2.8 QS (AMX engine) I have noticed that the clearance between the downpipe and the gearbox mount (the epdm cover?) is approx 10mm on the nearside and 20-25 on the offside at its shortest point. Now stupidly on my part I didnt check the clearance on the originals before removal. Would 10mm clearance be considered acceptable considering heat dissipation and movement of the powertrain under load?

Also, is there any worth in wrapping the downpipes in order to reduce heat dissipation into the engine bay?
Gosport UK
Hobby doer upper: Audi A8 2002 2.8 Quattro Sport (x2)
Daily Driver: BMW 530E M Sport.
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