i bought the new black shortshots for 2007 softails. i had been told to stay away from these pipes before but because these are the new style (with oxygen sensor place) i thought they must be improved. firstly they looked fantastic and sounded great but i lost 20 % power from stock pipes. i bought the vance and hines baffles. this made the pipes sound even better but these pipes will always let you down. on the dyno machine the reading is 79 but standered bike is 92:cry:newsmile077: many pro harley garages have all said they are not happy with shortshot staggered,new and old style and shortshots not staggered are worse!!!