Hole centres on exhaust?
 

Hi, i just bought a used decat downpipe for my02 sti (japspeed bellmouth and 2.5") The hole centres on the flange are 115mm. I had previously bought a gasket this is obviously smaller (90-105mm ish )
Apart from me having the wrong gasket, it got me thinking if this downpipe is gonna be a straight fit to stock centre section??

You;d like to think it was a straight fit. That looks like one of those shaskets from ebay (sh1tty gaskets) that are never any good.

used the same type gasket in the past with no issues

I bought the same material gaskets from ebay and I can only deduce that they were cut out by reception infants.

Yeh most prob mate in some shack in iraqistan, Reckon i'll take it down my local scoob specialist(carnetix) for um to av a gander first

The support bracket has been cut off too. U reckon it still be ok?

What does the support bracket usually bolt to? I dont remember seeing one on my prodrive sportcat.

gearbox somewhere i reckon. have read somewhere that they dont always line up. Reckon thats what prob happened here. Cant see it making too much difference

Asked the exact same thing on here a while back mate as could not work what was what ??!! its deffinattly a slightly oval shaped gasket as opposed to a round one, the hole is round on the the midpipe but again its a slightly oval shaped gasket that you need. 115mm across the holes that joins up to the downpipe part number : 44022AA122, cost me £17.31 + vat from the highly recommended Import car parts.

had me stumped as well until I was advised it was a slightly oval shaped gasket I required !!

is it gonna mate up ok with my standard centre centre section. I just wrongly assumed it would be the same as back box flange dimensions.

cheers for help btw

No probs glad you got sorted, it took me a few nights off asking about this mate as could not get my head around it requiring the oval shaped gasket with it being a round pipe it joined onto, sunk in in the end !!!
good luck !!

Reckon I should of bought a new downpipe cause they seem to come with gaskets. Would of been about same money

Becky will get it sorted somhow.