HP gains w/ different exhausts...
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01-05-2013, 06:14 PM
Drives: 2013 Bmw m5
Join Date: Nov 2012
Looks like the butt dyno was on point with the real dyno. oh yea.
2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust Hr springs 562hp/524tq
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