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Old 07-21-2017, 08:09 PM   #2
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 6,804
Re: VERY stupid question; does changing a cam change the acceleration sound?!

Absolutely. And, actually a few years back I had the ignition module on my suburban go out and I got a Napa one. Never did run quite right, so I picked up a GM module. I swear the tone of the exhaust changed when I put the factory module in
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