Bill Verburg

I suppose anything can corrode but here's a pic of oem silicon-bronze exhaust clamps & bolts that have been in service for over 10 yrs, including lots of salted roads. Not a spec of corrosion anywhere.


Incidentally all of the oem exhaust hardware is hardened, something that can't be done w/ ss.

It's your car....

AOW162435

And I thought all along that the nice Aeroquip (UK) clamps on our exhaust system were stainless.


Andreas

TheOtherEric

I don't think the OEM bolts are ss, somebody correct me if I'm wrong. Nothing wrong with just picking up some 5/16" bolts from Home Depot and using some anti-seize. These are just exhaust tip bolts, guys. Save your money for something useful.

Bill Verburg

no they are not, as I said I don't know the alloy but they look like the silicon-bronze alloys we use in marine applications. They are harder(bolts are 8.8) and more corrosion resistant than any ss alloy.

As I said I could car less what you do w/ your car. But at least be aware of the issues. If saving a few pennies is that important by all means scrooge away.

boulderbobo

VVVVVV ME VVVVVV

AOW162435

I presume that's directed at someone else?


Andreas

pcarhombre

I think that was directed at me Andreas, but don't know why. I never indicated I was trying to save money on the bolts, just trying to find out what they were and where to get them other than the dealer. And happy holidays to you, too, Bill.

Bill Verburg

It wasn't directed at anyone in particular, sheesh you guys are sensitive,

Bill Verburg

and the answer was provided in post #7, the issue became muddled by alternate responses. I honestly don't find the discount dealers prices for hardware to be out of line w/ quality alternative sources like McMaster Carr or other similar vendors.

The oem hardware is remarkably well designed and implemented.

FisterD

Wow, Bill, your hardware looks remarkably good. This is generally what I see with all of the exhausts I r&r.....

boulderbobo

^^^^Mine looked just like that^^^^

tjangi

I wan't my Stage 2's back

jscott82

Im with bill on this one... They are stronger and harder than any SS I have seen. If SS would do the trick I'm sure Porsche would have gone that route rather than whatever special alloy they used.

When I got my car it had some cobbled together supertrapp exhaust. I had to replace the whole thing. I got all the nuts and bolts from DC Automotive for like $20. Threw them in the tumbler for an hour and they look/work like new.

Just my 2 cents...

AOW162435

Can I send some stuff to get tumbled?


Andreas

MarkD

I suspect Porsche didn't use SS because it can weld itself to itself... using SS nuts and bolts requires another step to maintain them. They would have to train Porsche Techs to use anti seize on exhaust clamp bolts. If the Techs did not use it they would quickly have many broken bolts on their hands and increased cost.
The bolts don't need to be hardened for this application.
Cost isn't really a factor either since neither are terribly expensive.
Buy the bolt that floats your boat

Much ado about bolts, eh?