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Old 01-31-2014, 10:33 AM   #15
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I've got Perrin.
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Old 02-04-2014, 02:11 AM   #16
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is the stock overpipe 2.5 inlet 2.5 outlet?
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Old 02-04-2014, 02:34 AM   #17
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is the stock overpipe 2.5 inlet 2.5 outlet?
Stock is 2.118 inch tubing. I am not kidding with the decimal places.
http://perrinperformance.com/i-13324...-fr-s-brz.html
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Old 02-04-2014, 02:54 AM   #18
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Stock is 2.118 inch tubing. I am not kidding with the decimal places.
http://perrinperformance.com/i-13324...-fr-s-brz.html
glad i asked... thanks snooze

i was under the impression that stock was 2.5in tubing
so 2.5in tubing should be more than enough flow for NA cars

i might get the dc sports overpipe i believe it is 2.25in inlet & 2.5in outlet
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Old 02-04-2014, 03:03 AM   #19
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Stock is 2.118 inch tubing. I am not kidding with the decimal places.
http://perrinperformance.com/i-13324...-fr-s-brz.html
is this inner dia or outer?
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Old 02-04-2014, 03:37 AM   #20
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is this inner dia or outer?
Hang on. I will see if I still have original in shed.

Nope, sorry, I have turfed it.
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Old 02-04-2014, 03:46 AM   #21
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Originally Posted by PERRIN_Jeff View Post
This is a good side by side comparison of the OEM part on top and the PERRIN 2.5" prototype on the bottom. The factory part is made from 2.118" OD tubing (like the rest of the exhaust) and has a couple of really sharp bends along with an area with a big crimp. The PERRIN part we made is 2.5" tubing and smooth mandrel bends.
http://www.ft86club.com/forums/showthread.php?t=7745
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Old 02-04-2014, 03:49 AM   #22
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ty
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Old 02-04-2014, 03:51 AM   #23
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so now im wondering what size is the outlet on the ap header that i have... if its 2.25 or less i will get the dc sports overpipe
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