RE: X-pipe VS H-pipe
If you go go brenspeed.com, you can hear them test the x and h pipe. sorry but the x sounds like crap.
I've read that the stock h pipe on the 05's and up flow pretty good. i've heard the mac pro chamber on a 01 GT and it sounded weak to me, but others will tell you it sounds great.
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2005 Mustang GT Torch Red
N/A 293rwhp 308rwtq
100 Shot 368rwhp 390rwtq(safely tuned=fat and happy)
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