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My review of the Pypes mid-muffler system (volume, tone, drone, fit, and value) Volume: Anything louder would be annoying for a daily driver. It is just at that volume "limit". Cold start-up is loud, but it settles down nicely. WOT volume is excellent. The other system I had was not different...

Hi, I just installed the Pypes mid muffler system and I love the sound. But, the passenger side muffler is only a little more than 1/8 of an inch away from the gas tank. I've tried adjusting and that's the most I can get. The driver side is ok. Will that amount of clearance be enough?

Hi, I've narrowed down my choices for axle-backs and was wondering which one is the loudest and which would be the quietest. 1) FRPP M-5230-S (KR/FR500S) 2) JBA (40-2627) 3) Flowmaster AT (817410)(60 series mufflers). Any feedback would be great. Thanks.

Hi, Got bored today so I thought I share what the mufflers on my 07 GT sound like: ‪Mustang GT Manual with GT Auto/GT500 mufflers‬‏ - YouTube

I bought my 07 GT manual used a few weeks ago and I love it!! At one point before I bought it, the mufflers were replaced with Ford OEM mufflers with part number FI-7991. I read that these are the mufflers for an automatic, and they are the same mufflers used on the GT500. Can someone...

Hi, My first tech post!! I was wondering how installing glasspacks before the axle on an 07 GT manual would do to the overall sound while keeping the stock mufflers on. Would it be much louder or at all? How about the drone? What would it actually sound like? I thought this might...

Just want to say hi to everyone! Just got my first Mustang (07 GT Manual) and look forward to many miles behind the wheel.