Jdm decat exhaust gaskets?

106pete · Post by **106pete** » Mon Dec 17, 2012 6:13 pm

I've made myself a 2.5' decat pipe and want a proper gasket, I assume the rear flange is standard uk spec but the front to down pipe has an offset bolt hole?

Is there one off the shelf or do you just open out the hole?

Here's a quick snap of it

I have enough to make 7 more if there is interest?

bristol_bb4 · Post by **bristol_bb4** » Mon Dec 17, 2012 6:16 pm

i used one of these

http://www.ebay.co.uk/itm/2-5-INCH-DECA ... 563b747fc9

i had a nightmare sealing my exhaust before i used this gasket, worked amazingly

bristol_bb4 · Post by **bristol_bb4** » Mon Dec 17, 2012 10:13 pm

Yup I know it is mate but I really don't think you can buy one off the shelf with the right stud pattern in 2.5, I just put one bolt through one of the holes and 'floated' it into position using a dab of exhaust paste, that was months ago now and no probs so far, and I'm anal about exhaust leaks after the nightmare I had getting my exhaust to seal

'92 Si VTEC · Post by **jjmartin349571** » Mon Dec 17, 2012 10:18 pm

Price dependent, I'd be very interested in one of these

looks awesome!

bristol_bb4 · Post by **bristol_bb4** » Mon Dec 17, 2012 10:43 pm

Tried that first of all ^ pure aggro!!!!

Post by **4thgenphil** » Mon Dec 17, 2012 10:52 pm

i got mine from a uk seller on ebay

Post by **4thgenphil** » Mon Dec 17, 2012 10:54 pm

worth an ask about size?

http://www.ebay.co.uk/itm/BUDDY-CLUB-PR ... 4d049ef674

106pete · Post by **106pete** » Tue Dec 18, 2012 9:52 am

bristol_bb4 wrote:i used one of these

http://www.ebay.co.uk/itm/2-5-INCH-DECA ... 563b747fc9

i had a nightmare sealing my exhaust before i used this gasket, worked amazingly

They do make one that looks right for the flange buts its not bloody cheap, and if I'm goin to supply them with the decats I think I need something a little more proper job.

newkid wrote:Do it the easy way then

http://www.ebay.co.uk/itm/Exhaust-Manif ... 2ec2f626b4

cut to size you need

Have you ever tryed to cut this stuff? I have a sheet at home, I think I need a laser to cut it neatly!

jjmartin349571 wrote:Price dependent, I'd be very interested in one of these looks awesome!

I'll get a price soon, just wanna check this one fits and alot depends on if I can supply bolts and joints

Rocky · Post by **Rocky** » Wed Dec 19, 2012 6:28 pm

How about a crush ring gasket? I got a set when I bought a decat a couple of years back......still have To fit it

106pete · Post by **106pete** » Wed Dec 19, 2012 7:08 pm

I think they are designed to sit in a groove which the origional cat as but I can't do it to mine really.

A local motor factors has supplied 1 and I've opened it out to 2.5' and slotted the holes to suite but I want something more professional, I emailed some eBay sellers and they don't have the right bore size, and the ones that do are way to expensive