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Best size test pipe to fit on OEM exhaust

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Old 12-14-2013, 07:21 AM
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Default Best size test pipe to fit on OEM exhaust
Hi

Did some search but couldnt find any info regarding the question, what is the best test pipe to fit on oem exhaust/headers? 63.5mm or 70mm?

When I say best I mean, for air flow and power.

Thanks
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Old 12-14-2013, 07:44 AM
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60 or 63mm.
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Old 12-14-2013, 04:00 PM
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70mm invidia test pipe will work. I just installed mine with no problems. FYI, they have a version with the "CEL Fix"... it doesn't work, so just get the regular version and get a o2 sensor spacer to keep the check engine light off.
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Old 12-14-2013, 04:21 PM
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If keeping stock exhaust don't get a 70mm test pipe. Get a 60 or 63.
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Old 12-14-2013, 05:12 PM
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Originally Posted by Moddiction
If keeping stock exhaust don't get a 70mm test pipe. Get a 60 or 63.



I would say only run a 70mm test pipe if youre planning on running a 2 3/4 or 3 inch exhaust
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Old 12-14-2013, 08:11 PM
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60 right?...according to gernby.
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Old 12-15-2013, 08:49 AM
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60 to 63 mm for stock exhaust.

70mm only if you're getting a 70mm exhaust.
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Old 12-15-2013, 11:32 AM
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Originally Posted by 06Estukay
60 to 63 mm for stock exhaust.

70mm only if you're getting a 70mm exhaust.
+1
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Old 12-15-2013, 06:23 PM
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look for a thread started by Gernby, he's done lots of tests on this and a 70mm won't be as good for a stock exhaust.
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Old 12-15-2013, 07:38 PM
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Listen to Gernby

+2
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