I like my D&D 2 in 1 Boarzzilla with performance baffle, it is on the loud side but a well tuned loud if that make's since to some and it sound's all HARLEY and it make's wicked sound as I go thru gear's on the high side, they are not cheap thou. about $850.00 and they have been in business for 25 year's right down the highway in the beautiful city of FORT WORTH TEXAS, they even make pipe's for jap sorry (metric) bike's and have won a few race's, I know if it was not for my D&D I would not be able to make the DYNO number's I made un-less I had engine mods. done but happy the way it run's now!!! I love my FAT BOY. P.S. if any one may want to buy a D&D go to there web site and they will give SPECS. and DYNO'S on all HARLEY'S. PURPLE HAZE.