Subject	Re: 3" to 2.5 testpipes vs full 3"
Posted by	Greg D. (Specialty-Z) on May 29, 2012 at 10:00 AM
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In Reply To	3" to 2.5 testpipes vs full 3" posted by nissan300zxwork on May 28, 2012 at 10:26 PM
Message	Back in 2006/2007 when we did the testing for 3 inch cat backs vs. 2.5” cat backs with test pipes that reduce, the largest turbos we tested on a Z at that time were the Sport 700 turbos, the testing was done with stock 2 inch intercooler pipes at that the time. Back then the 2 inch intercooler pipes were causing more restriction than the 3 inch cat back, so we did only see minimal gains due to other restrictions in the set up. If you’re going to run 3071 turbos with 2.5” intercooler pipes, you’re absolutely leaving power on the table running a 2.5” cat back at that power level.
Follow Ups	3" to 2.5 testpipes vs full 3" - nissan300zxwork 22:26:43 05/28/12 I have the EXP90's with 3" up front, 2.5" greddy out back... - samsung-Z [Houston] 22:46:50 05/28/12 perfect. thanks for the response. - nissan300zxwork 22:58:48 05/28/12 what is your plan for fitting the EFR turbos? - aliaZ 05:48:22 05/29/12 if you had your pick, borgwarner efr or the new - vulcanrush 11:25:08 05/29/12 EFR hands down - aliaZ 14:01:43 05/29/12 they require custom manifolds??! OMG,like why didnt i think - samsung-Z [Houston] 19:01:20 05/29/12 it was a pretty simple question (n/m) - aliaZ 20:42:55 05/29/12 I remember reading the only difference is minimal gains - pearlzed(toronto) 22:56:09 05/28/12 3" to 2.5 testpipes vs full 3" - 300twinz (satx) 08:46:23 05/29/12 ~30rwhp afaik (n/m) - BoneZ (MD) 09:28:27 05/29/12 Re: 3" to 2.5 testpipes vs full 3" - Greg D. (Specialty-Z) 10:00:57 05/29/12 speaking of... your sexy 3" exhaust should be delivered - PiotrC70 10:21:39 05/29/12 Full 3in please (n/m) - John (MD) 22:25:53 05/30/12
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