QQ Thunder Monster Baffles for pipes with an inside diameter of 1 3/4" and outside diameter of 1 7/8".
Some of the pipes these fit: Samson slip on Fishtails, Rinehart True Dual head pipes (must order adaptor for the Rinehart application), V-Rod head pipes (will not fit the Muscle head pipe which takes part number 2003 or QBL 1625), LA Choppers Curved exhaust for the Raider and LA Choppers Double D Curved pipes. These are only a few examples of pipes and you will need to measure your pipes for proper sizing.
If you have any questions please call! 704-847-1222