i just bought new 06 cvo fat boy with 2 into 1 D&D headers it had 30 miles on it allready, also i made them (find) my stock pipes that came on bike, i really like the D&D pipes, they also said they did down load when they changed pipes, i am not new to bikes so i think i know enough but with F.I and all guess i dont just read where someone is going to wait 1000 miles before he changes his pipes, why? if you still take it somewhat time to break in why worry over pipe change? also they did add cost of pipes and download to my total cost of bike, it will pop a little if i dont warm it up long enough or if i de-cell from higher rpm but they arent cheap at over 600.00 bucks i checked with D&D and they are one of the best, some people think they are to loud but they have race baffle inside, oh well why sweat some things, you have to pay to play!!! also had 95 inch 05 fat boy i traded, this 103 would whip that ass if i raced against it, just a newby running my head, peace my brothers!!!! [smiley=jalapeno.gif]