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Ford Racing Mufflers Question

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#1 OFFLINE   07SGT4743


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Posted 08 December 2012 - 06:27 PM

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.

#2 OFFLINE   bobkwiat


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Posted 08 December 2012 - 09:47 PM

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.

#3 OFFLINE   mwbgtb


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Posted 09 December 2012 - 05:48 AM

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.
2007 Shelby GT #278
Black 5 Spd
Shelby Gunmetal Razors 18"
18"x9" Front
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255/45/18 Front
285/40/18 Rear
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#4 OFFLINE   stewarbc


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Posted 09 December 2012 - 07:18 AM

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.

07SGT1163 Black /Silver, ARH LT's, FRPP Hot Rod Cams, FR500S Exhaust,SHR Carbon Fiber Tail Light Trim, UPR 3.5" Billet Antenna,Redline Gloss Black Hood Struts, Shelby Billet Gas Cap
08SGT0096 GT-C, Kooks LT's, FRPP Hot Rod Cams, Pypes, Steeda UDP, Redline GO Hood struts

#5 OFFLINE   07SGT4743


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Posted 09 December 2012 - 05:43 PM

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.

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