I had them work on 2011 tri glide they did a awesome job they tuned it drilled out the cat and replaced the mufflers did abig oil pump cams chains plate push rods as a bonus they blacked out the motor exhaust it runs so goog now i can run up any mountain at 80 and the fuel economy is so much better the guys at desert customs cycles are awesome i would recommend them to all my friends and family Willie and they have done all my work for years and they will always read more