70mm testpipe to 60mm exhaust

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Aug 19, 2006 | 06:14 PM

jin6

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Joined: Oct 2004

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70mm testpipe to 60mm exhaust

i have a j's header, t1r 70mm testpipe, and im gonna install the j's duel 60rs exhaust. will the reduction from 70 to 60mm be bad for the car? am i better off getting a 60mm testpipe?

Aug 19, 2006 | 06:22 PM

Harpoon

Joined: Mar 2005

Posts: 2,402

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From: Oregon

Everything I have ever read has indicated that it is smart to match up the diameters. Not doing so will result in uneven flow and poorer performance.

Aug 19, 2006 | 06:24 PM

Amer

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Joined: Nov 2001

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From: CA

Just get a T1R 60mm test pipe.

Aug 19, 2006 | 08:15 PM

-KEY!S2K-

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Joined: Jun 2006

Posts: 279

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there will be LOTS of people interested in buying ur 70mm testpipe!! sell it and get the proper one

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Dec 3, 2006 05:36 AM

70mm testpipe and 60mm exhaust ok?

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Aug 20, 2006 01:40 AM

anyone running T1R 70mm exhaust?

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Apr 11, 2006 01:12 PM

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