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adjustable test pipe flange bigger than header flange

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Old 12-10-2015, 10:31 AM
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Default adjustable test pipe flange bigger than header flange

any way to get this to work? im not looking to weld.

the flange part of the adjustable test pipe is bigger then the header flange part. bolt holes are way off.

can take pic if needed

Last edited by nyckid; 12-17-2015 at 12:30 PM.
Old 12-10-2015, 12:17 PM
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Default Re: adjustable test pipe flange bigger than header flange

Do the flange bolts line up or are they way off too?
Old 12-13-2015, 06:17 AM
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Default Re: adjustable test pipe flange bigger than header flange

You will need a reducer piece to go from one flange to the other. Or you might be able to hone out the flange bolt holes to allow for them to bolt up.

This is kind of a vague question. If you post up pictures of the two flanges you might get a more accurate answer.
Old 12-17-2015, 12:27 PM
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Default Re: adjustable test pipe flange bigger than header flange

Originally Posted by 93egSLEEPER
Do the flange bolts line up or are they way off too?
bolt holes are way off
Old 12-17-2015, 02:10 PM
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Default Re: adjustable test pipe flange bigger than header flange

Could you at least list what size and style flanges you are talking about here?

This is a thread of the blind leading the blind!
Old 12-17-2015, 06:05 PM
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Default Re: adjustable test pipe flange bigger than header flange

not at home but this is the header

Acura Integra RS GS LS 4 2 1 B18A1 Stainless Steel Chrome Exhaust Race Header | eBay

test pipe

http://www.ebay.com/itm/94-01-INTEGR...BV3nW8&vxp=mtr
Old 12-18-2015, 06:17 AM
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Default Re: adjustable test pipe flange bigger than header flange

2.5 inch test pipe. 2" header.

thats a problem usually. you probably need the 2.25" test pipe...or a header with a "JDM" aka 2.5" collector.
Old 12-18-2015, 05:04 PM
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Default Re: adjustable test pipe flange bigger than header flange

Yeah! 1/2" diameter difference is a bit much for a non weld solution.

Just out of curiosity what diameter is the rest of your exhuast?
Old 12-19-2015, 05:38 PM
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Default Re: adjustable test pipe flange bigger than header flange

even the 2.25" test pipe WONT fit a 2.5" collector...learned that the hard way today.
Old 12-22-2015, 08:15 AM
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Default Re: adjustable test pipe flange bigger than header flange

back part bolts up fine to my exhaust. the doughnut for the front mates up fine to the header.
its just the holes for the bolts which is why i was asking if i can cut this bigger flange off and clamp on a smaller one.

if so where can i find this?
Old 12-22-2015, 09:04 AM
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Default Re: adjustable test pipe flange bigger than header flange

The flange on the header is stock sized and the flange on the test pipe is much larger. You could buy a2.25" ball flange and 2.25 to 2.5 adapter then cut your test pipe up and weld. Or just go buy the 2.25 inch test pipe.
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