Ford Mustang Forum - View Single Post - Which Long Tube Headers with FM Outlaw Axel Backs
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post #10 of (permalink) Old 07-15-2015 Thread Starter
Lava12's Avatar
Joined: Mar 2015
Location: Farmington Hills
Posts: 59
Great video. Very scientific. Conclusion= shorty headers give you more torque above 5100 rpm and long tubes give more torque below 5100 rpm.

1 5/8" headers have peak torque at 4175 rpm
1 3/4" headers have peak torque at 4500 rpm (this one may be slightly off)
1 7/8 headers have peak torque at 5100 rpm

2012 Mustang GT Premium: Shaker 1000 audio, Lava Red Metallic, BBK long tube headers, BBK High Flow catted x-pipe, GT500 mufflers, MGW race spec shifter, JLT CAI with 91 octane BAMA tune, J&M rear LCA's, Roush front grilles, GT500 rear spoiler, more to come
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