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Old 12-02-2018, 11:37 PM   #1
Scooby Newbie
Member#: 494485
Join Date: Nov 2018
Default Do I need a donut gasket

Today I put on my grimmspeed downpipe and ark grip catback but still confused about gasket between catback and downpipe.
It looks like the Ark catback side wants a donut gasket but looking at the grimmspeed side there is no lip sticking out for the donut to rest on.
Will the grimmspeed gasket be enough in the long run or should I get adapter with donut gasket and springs?
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Old 12-03-2018, 10:12 AM   #2
Scooby Newbie
Member#: 451791
Join Date: Aug 2016
Location: Washington
2015 WRX
Dark Gray


You'll probably be fine with the GS gasket. A lot of the catback exhausts assume you'll be using the stock downpipe with the donut for fitment/compatibility reasons.
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Old 12-03-2018, 12:58 PM   #3
Scooby Newbie
Member#: 494799
Join Date: Dec 2018

I got a doughnut gasket off amazon and it saved me a lot of worries about if any mock gaskets that i used would blow out
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Old 12-04-2018, 01:37 PM   #4
Newbie Moderator
Member#: 91347
Join Date: Jul 2005
Chapter/Region: NESIC
Location: Boston, MA
2004 Tacoma Crew Cab
2012 Triumph 1050



These guys are some of THE most helpful in the business. Have you tried asking them?
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