I have a Power Vision tuner and with the auto tune feature it will tune the CFR's to the bike. The tune that Fuel Moto sent me with the PV works well too. The Auto Tune just fine tunes it even further. I've had no problems with my CFR's at all. The only thing I have notice is that you will lose a little bottom end. I know guys on this forum have installed a washer at the end of the head pipe just in front of where the muffler clamps on and that is supposed to bring back the bottom end that was lost. Or you can install new cams.
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2012 FLTRX Denim Black,Stock head pipe with Cat removed w/ Jackpot 4" black slash up slip-ons. power vision, Fuel Moto pro billet A/C, Woods TW-222's, 12" Klock Werks . Sanchos Wings. Khrome werks 2+2 Handlebars.