Ford Mustang Forum - View Single Post - 2011 GT longtube headers quieter than stock
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post #4 of (permalink) Old 02-23-2016
PMDmustang13
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Can you confirm exactly what you installed such as did you install headers with what size primaries? Did you install 3" H pipe with cats? And you have the stock over axle pipe with resonators?

2013 GT, Track Pack, Recaros, Kooks Axlebacks, Airaid CAI, BMR Rear Adj. LCAs, BMR Relocation Brackets, JLT Oil Separator(s), Barton 2 Post Shifter Bracket, Steeda Motor Mounts, Barton Shifter, JHR Clutch line, BMR adj. UCA and Mount, Kooks 1 3/4 headers/catted H, DSS Al Shaft, BMR Loop, Vogtland Sport Springs front/BMR rear, Strange Adj. Struts/Shocks, Extended ball joints, Steeda Bumpsteer Kit, Whiteline Tranny Mount Bushing, Borla Overaxles, BMR Watts, Vorshlag 3" Ducts
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