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Message: <blockquote data-quote="jcl48" data-source="post: 654319" data-attributes="member: 13511">^^ for real?? I didn't knew that, where did you found out that? Their specialty are mustangs and Shelbys' GT500. And yes they do a bunch of Camaros' and Vetts. Even Vipers and custom Track CarsWith my stock headers they did a good work, not an issue. The issue presented when I went all in and decided to do the headers.I will bring it to them on monday morning so they can put it on the dyno again to see what they can find out and try to resolve the issue.By the way, I also purchase 5Star Mike 93 Perf. Tune and it still does the sound and I have drove it for a good 75 miles now after I installed mikes tune.Sent from my SAMSUNG-SGH-I337 using Tapatalk</blockquote>