Subject	Any issues with 3” axleback with full 2.5” exhaust?
Posted by	Zbruh92 on March 31, 2018 at 6:49 PM
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Message	I know this topic has been beaten into submission but I’m currently running 2.5” downpipes -> 2.5” testpipes -> HKS cat back. I love the sound of the HKS but hate the way they look so i was thinking of going with the Z1 PG which only come in 3”. People always recommend full 3” but for a 400hp build it doesn’t seem worth it to replace everything with 3”. The plan is to keep the resonator from the HKS and install PG axle back. There isn’t much difference in the size and being that far downstream “I” don’t see it posing an issue, after all I went from stock precats and cats with HKS no problem. Another option would be having a muffler shop custom fab some 2.5”.
Follow Ups	Any issues with 3” axleback with full 2.5” exhaust? - Zbruh92 18:49:29 03/31/18 Re: Any issues with 3” axleback with full 2.5” exhaust? - SammybTT(TN) 21:53:20 03/31/18 Not sure how the 2.5" H/X Pipe is going to mate up with the - MixManMash 12:38:13 04/02/18 I can make it work lol or have a shop fab some in 2.5” - Zbruh92 22:58:00 04/02/18 How beneficial is the 2.5” inlet? - Zbruh92 16:19:05 04/07/18 It's beneficial from a spool up point of view. - MixManMash 16:31:40 04/07/18 Re: It's beneficial from a spool up point of view. - Zbruh92 17:51:17 04/07/18 My dyno chart shows otherwise if you compare it with a - MixManMash 10:14:20 04/08/18 Here's a really good post worth reading. - MixManMash 10:24:53 04/08/18 Might help if I actually post the link. - MixManMash 10:25:28 04/08/18 wow I stand corrected! Definitely need those in my life (n/m) - Zbruh92 13:37:47 04/08/18 It's a revelation driving a Z32 with stock turbos and those - MixManMash 17:09:12 04/08/18 Shouldn't be any issues - pandamanz32 14:35:28 04/05/18 Thanks, did the bolt holes line up? - Zbruh92 11:05:11 04/07/18 Labree will make any inlet size you need and their mufflers - Zblackbeast 15:42:09 04/08/18
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