Finally getting my ZR-1 back from Corey's!!! - Page 5 - ZR-1 Net Registry Forums

EvanZR1 · 08-16-2011

Yeah, I was already thinking of replacing the Borla resonator with an x-pipe. I've been under it and looked at the inlets, and they are really restrictive. Once I get the new injectors back and finish up some exhaust work, I'll re-dyno. May even have Corey retune after that.

4-cam · 08-16-2011

I just removed my Borla resonator and replaced it with an x pipe. The car has less resonance inside than it did with the resonator in place. I was very surprised! Im glad the resonance is gone, but I wish it made a bit more noise. My Bro was following in his vette and he said it still sounded pretty mean from behind though.

08-16-2011	#41
EvanZR1 Join Date: Nov 2010 Location: Omaha Posts: 403	Re: Finally getting my ZR-1 back from Corey's!!! Yeah, I was already thinking of replacing the Borla resonator with an x-pipe. I've been under it and looked at the inlets, and they are really restrictive. Once I get the new injectors back and finish up some exhaust work, I'll re-dyno. May even have Corey retune after that. __________________ Evan 2024 Z06 SOLD - 1991 Admiral Blue ZR-1 SOLD - 2012 Carlisle Blue Metallic ZR1 - 800HP SOLD - Steel Blue 91 391cid ZR-1 #391 SOLD - Black 91 ZR-1

08-16-2011	#42
4-cam Join Date: Feb 2010 Location: Arvada Colorado Posts: 194	Re: Finally getting my ZR-1 back from Corey's!!! I just removed my Borla resonator and replaced it with an x pipe. The car has less resonance inside than it did with the resonator in place. I was very surprised! Im glad the resonance is gone, but I wish it made a bit more noise. My Bro was following in his vette and he said it still sounded pretty mean from behind though. __________________ [I]4-cam[/I] [I]1991 ZR-1 Blk/Gry #31[/I] [I]SW Headers/Xpipe- Dynomax Muffs[/I] [I]Ported top end[/I] [I]Secondaries Removed[/I] Tune by Dominic