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Old 12-29-2011, 01:56 AM   #53
cardsfan09's Avatar
Drives: SS/RS 6M, '98 Z71 p/u
Join Date: Oct 2009
Location: Ozarks
Posts: 51
I had the rattlers, and asked the service manager to see if they could put the GMPP mufflers on instead of the stock mufflers, cost me $60 extra and it fixed the rattle and I'm getting a little better low end torque and she just breathes easier throughout the RPM band, another bonus is that I'm now averaging 25.6 MPG !!!!!
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