Annoying rattle from the rear

[BartyB]

Whilst replacing the Boxster's reversing light switch recently, I finally managed to track down the source of an annoying rattle that would usually kick in under acceleration. The culprit turned out to be the exhaust U-tube clamps (996-111-209-00) on the main box which had both rusted away to nothing...

After wondering why they weren't picked up at the major service 6 months ago at my PC and discovering the outrageous cost of Porsche rust-prone replacements, I sourced some stainless steel exhaust clamps (Mikalor Supra W4 : 47 mm - 51 mm) from an Austin-Healey parts specialist in Warwickshire for £2.10 each. Torqued up to 10 Nm they compress the pipe just enough to apply the right amount of clamping pressure. And they're half the weight too.

No rattles now... or rusting. []

 

[Tony Daniel]

They are called Mikalor clamps and are pretty cheap off Ebay, I have used them on the T-piece of my 987 exhaust without problem.

 

[BartyB]

Indeed Tony. Mikalor Supra W4 Heavy-duty clamps - data sheet here. Mikalor make a lot of the OEM hose and pipe clamps and fasteners used on European car production lines and that probably includes Porsche so worth knowing about.