hello i have a 2008 mustang gt with slp lm's hi flow cats and o/r xpipe. At low rpms it sounds good but when i really want to push it it whins. Is there anything i could do to get rid of that whine. overall its loud and mean just that whining at high rpms is just a little annoying. will headers help? thankss

 

are you auto or manual. I find my auto will whine sometimes.

 

its manual its more raspy then whining to tell you the truth its when i floor it i get the raspy tone for a couple of seconds then it sounds good