07SGT4743 Posted December 9, 2012 Report Share Posted December 9, 2012 Hi All, Anyone know the difference between the Ford Racing -SGT-5230-S and the M-5230-SGT mufflers? Looking at the BUYFORDRACING site, the description on the S mufflers says that they fit both the 2005 - 2009 Mustang GT and the 2007- 2009 SVT, yet the SGT mufflers only list the 2007 - 2009 SVT. I was under the impression that the mufflers could be interchanged between the GT500 and the GT. Specifcally, I wanted to know if anyone knows if the 5230-SGT will fit on a Shelby GT without modification. Has anyone used either of these on an otherwise stock SGT? If so, is it streetable? I'm looking for a little more bark than the stock mufflers give. I had a set of SLP Loudmouths on for a while, but found they were too loud for my tastes on longer trips. Thanks for the feedback. Link to comment Share on other sites More sharing options...
bobkwiat Posted December 9, 2012 Report Share Posted December 9, 2012 I originally had the 5230-SGT mufflers on my 07GT. I believe that they are the FRPP version of the Borla Stinger. IMHO a very nice sounding muffler, deep but there was a drone between 1600-2000 rpm and I was surprised at how much I drove in that rpm range. I then switched to the 5230-S or "KR" muffler. I loved that muffler, deep sound with no drone at all. Same tips as those on an 08 Bullitt. After I had Kooks LTs with a catted H pipe installed the "KR's" were now IMO too loud. I was amazed at how LTs changed the sound. I ended up with 08 Bullitt mufflers. With the LTs they sound good at WOT and cruise, wish they were a little louder at idle. Hope this helps. BTW I bought the mufflers from BUYFORDRACING and found them to be great to deal with. Link to comment Share on other sites More sharing options...
mwbgtb Posted December 9, 2012 Report Share Posted December 9, 2012 I purchased the "KR's" also for my stock 07 SGT and love the sound. At first I thought that I made a mistake on buying them because the sound was not that much different, but after a few weeks you can hear the difference. Link to comment Share on other sites More sharing options...
stewarbc Posted December 9, 2012 Report Share Posted December 9, 2012 I went back and forth and back and forth(as so many of us do). However, I chose the 5230-S for my 07SGT. Some days I wish it were louder but these are "just right" for this vehicle. http://www.teamshelby.com/forums/index.php/topic/72208-2007-shelby-gt-fr500sford-racing-m-5230-s-exhaust/page__hl__5230-s Link to comment Share on other sites More sharing options...
07SGT4743 Posted December 10, 2012 Author Report Share Posted December 10, 2012 Thanks for the replies, they definately gave me the clarificaton I was looking for. The KR's are probably more of what I was looking for. Link to comment Share on other sites More sharing options...
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