I am thrilled with my new D&D black satin show and go slip ons. With the 04 black hawk and those exhausts.....WOW. Think I need to rejet and add an air filter because it needs more air. I'm thinking K&N air filter and the dynojet stage 1 jet kit. Since my history is with Harley's I'm looking for some imput from you experienced hawk riders. The bike is sputtering and can't be ridden much without the rejet and air filter. Just wanting to get some thoughts from those of you who have been through this.