It's of my understanding Tracy @ cincy speed really knows his *****!! But tring to get in contact with him and getting him to do the work is a PITA!
2013 5.0 m6 base 3.31's tint 20in Shelby razors 255/35/20 falken fk 452's koni srt.t's sr springs j&m phb gt500 mounts upr rear billet lower ca's upr brackets upr adjustable upper ca flowmaster at classics steeda cat deletes airaid cai premium st brace jlt catch can MGW shifter and blk ball. Currently bama tuned 400hp 383tq. Zex blackout kit w/msd digital window switch, fpss, zex bottle heater, bottle opener, blow down, and purge with a dyno tune coming soon..