Exhaust collets needed for center pipes on Gs1100 with V&H pipe ?

[Guest]

Just wondering if you need to use the factory exhaust collets like used on the stock center pipes of an 80 GS1100E or not with a Vance & Hines 4-1 pipe ? Ive been using double gaskets because I didn't even know those collets existed, they weren't on the bike when I bought it

[OldVet66]

I always had to use double gaskets with my old V&H on my GS1000. Unless the 1100 head is different I don't see why you would need the collets. The V&H has such a skimpy sealing ring at the end of the pipe any mounting angle less than perfect dictates two gaskets to seal properly without bending the bolt flanges.

[Katarat]

That's what Ive been doing, I never knew the collets existed until I took the stock pipes off my 1150 then looked at a parts book for the 1100 and saw them there