Zeufenhausen

Any idea where I can get these clamps outside of Porsche Dealer. Super expensive and long lead times.

link for reference: https://www.suncoastparts.com/produc...91GT3EXCL.html

Jickel180

Did your bolt break? If you're not using your center muffler, one of the muffler strap bolts will work as a replacement in the meantime.

Todd B

So you can go shopping, here's the part numbers.

Clamp part number - 997.111.336.90
sealing ring 980.111.561.00

1963SWC

If you indeed did simply break a bolt or stripped the welded/threaded nut, and did not break the clamp itself, you can do what I did.
Take a drill and bore out the welded/threaded nut a bit and then simply use a "regular" bolt and nut combo.

moezilla

the key word is "v band clamp". I have a feeling a standard piece that is from $5 to $20 would work as well as the $160 to $350 Porsche part.
for example
https://www.atpturbo.com/mm5/merchan...de=CLC-CLA-013. also available on AMZN for double the price shipped in a very large box

TET GT3

Have you tried it? My feeling is that it wouldn't work, as V band clamps are usually quite narrow for thin rolled or machined flanges. The OEM clamp is wider and has a rounded profile. Maybe a market need here...

moezilla

Yes it is a kludge. Trying it out next week. Photos to follow next week.

moezilla

to further the kludge, perhaps a 3-5/8" and 3-1/2" o-ring set would produce the same physics without damaging the side muffler flange. It is all just to pass California smog.

rcg412

I am pretty sure i have all of these parts off of a 19 GT3 RS Titanium muffler. PM me and we can work something out. Thanks, Ross

moezilla

I think the Mercedes part may work. $40 each instead of $160-$320 each

moezilla

proves how abusive Porsche is on parts. Depending on what dealer, the part is $180 to $350 each. A Mercedes dealer typically charges $35-65 each. The part is 100% identical from the same tooling, just a different part number stamp
A Porsche dealer will also charge $1800 for a paper template for an emblem placement (true story!)