[ZR1] ZR1 Headers
10-27-2016, 07:04 PM
#21
Le Mans Master
Member Since: Jul 2007
Location: Arkansas
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St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'22-'23
From what I've read here over the years 1 BAD ZR1 is correct. On a stock ZR1 up to about 800 rwhp the stock exhaust is not restrictive. I've read maybe 7-8 hp gain on a stock motor, not much hp for the money but the sound is greatly improved.
10-27-2016, 08:51 PM
#22
Burning Brakes
But once you get into 700whp+ on a pulley cam motor , if your stock manifolds won't the stock cats fail? Assuming you don't want to go guttted does anyone have experience with these WITH the hi flow cats and do they hold up over time? Thanks.
https://shoparh.com/collections/corevette/products/zr1-corvette-2009-2013-long-system?variant=29943929796
https://shoparh.com/collections/corevette/products/zr1-corvette-2009-2013-long-system?variant=29943929796
