Ford Mustang Forum - View Single Post - Best route to fix the exhaust rasp?
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post #16 of (permalink) Old 11-19-2013
SterlingThunder
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Joined: Jul 2010
Location: Valencia
Posts: 56
 
I just reverted back to the original stock midpipe. Even with 12" Vibrant Resonators, my Lethal Perf. offroad x-pipes were way too raspy beyond 3k rpms. The sound was too loud for me to enjoy the gains.

I'm also very interested in this XFlo muffler, curious if they inhibit power. Raided youtube and didn't find any 3.7 videos. I'm going to call Lethal Performance if they have ever recommended these.

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