Cat Flange sizes?
Thread Starter
Junior Member
Joined: Nov 2001
Posts: 609
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From: Toronto, Ontario, Canada
Cat Flange sizes?
Hey,
From what I've seen in threads, it seems that althought the stock cat is a 2.25" ID, the flange size bolts up directly to a 2.5" Bpipe. Does anyone know about the other side of the cat, where it bolts up to the header, if that will bolt up to a 2.5" header as well?
Ie. Is the header flange size (not ID) the same as a JDM header?
Thanks!
From what I've seen in threads, it seems that althought the stock cat is a 2.25" ID, the flange size bolts up directly to a 2.5" Bpipe. Does anyone know about the other side of the cat, where it bolts up to the header, if that will bolt up to a 2.5" header as well?
Ie. Is the header flange size (not ID) the same as a JDM header?
Thanks!
Darth ModerVader
Joined: Jan 2001
Posts: 11,539
Likes: 1
From: Mustafar
Re: Cat Flange sizes? (Stock R)
No, the flange on the stock USDM cat. is too small to bolt to a JDM-sized header. And FWIW, the stock cat. is not 2.25" ID at either the inlet or the outlet.
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