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Old 01-02-2018, 10:14 AM   #1
ZapperZ
 
Drives: 2018 ZL1 1LE 2022 GMC AT4 HD
Join Date: Dec 2014
Location: Valparaiso,Indiana
Posts: 297
Kook's X-Pipe Exhaust

Going with Kook 1 7/8 catted headers and also considering their full quad tip X-pipe cat back exhaust.
Any gains to be made from this replacement from experiance?
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