header flange and cat flange questions
09-28-2007, 11:58 PM
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header flange and cat flange questions
I just recently picked up a hatch with a gsr swap. It has a FGK header and collector. The collect is 2.5 i believe and the cat is only 2.25. So of course they aren't fitting, my question is can i just buy a flange and have it welded to the cat or will that not even work since the cat is only 2.25?
09-29-2007, 02:00 AM
#2
Re: header flange and cat flange questions (MySelfAffliction)
but the flanges line up,right? and does the header come with the metal o ring as in the pic shown below..or it came with thin metal gasket
Modified by crazyguy at 10:16 AM 9/29/2007
Modified by crazyguy at 10:16 AM 9/29/2007
09-29-2007, 09:12 AM
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Re: header flange and cat flange questions (crazyguy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crazyguy »</TD></TR><TR><TD CLASS="quote">but the flanges line up,right? and does the header come with the metal o ring as in the pic shown below..or it came with thin metal gasket
</TD></TR></TABLE>
No the flanges do not line up, the cat side is too small. And yes it came with the donut gasket on the collector side.
</TD></TR></TABLE>No the flanges do not line up, the cat side is too small. And yes it came with the donut gasket on the collector side.
09-29-2007, 09:16 AM
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Re: header flange and cat flange questions (MySelfAffliction)
ok..it if does not line up..u need to bring it to a muffler shop to have them cut and welded for u..thats what i did.
09-29-2007, 09:23 AM
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Re: header flange and cat flange questions (crazyguy)
Yea the last shop i went to last weekend..didn't have any flanges laying around. So i guess i'll try going to another shop. Should i have them put a bigger flange on the cat side or a smaller flange on the collector side?
09-29-2007, 09:32 AM
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Re: header flange and cat flange questions (MySelfAffliction)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MySelfAffliction »</TD></TR><TR><TD CLASS="quote">Yea the last shop i went to last weekend..didn't have any flanges laying around. So i guess i'll try going to another shop. Should i have them put a bigger flange on the cat side or a smaller flange on the collector side?</TD></TR></TABLE>
I would definitely get the bigger flange on the cat so you don't bottleneck the header.
I would definitely get the bigger flange on the cat so you don't bottleneck the header.
09-29-2007, 01:55 PM
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Re: header flange and cat flange questions (8krdline)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 8krdline »</TD></TR><TR><TD CLASS="quote">
I would definitely get the bigger flange on the cat so you don't bottleneck the header.</TD></TR></TABLE>
cool that's what i needed to know. Thanks
I would definitely get the bigger flange on the cat so you don't bottleneck the header.</TD></TR></TABLE>
cool that's what i needed to know. Thanks
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