Motorcycle Repair: Exhust pipe replacement, harley dyna, harley dealership

Question
I have a new 2004 Harley Dyna Super Glide, 88 Cubic Inch. I am very pleased with the stock performance of the bike but just want to add a bit of rumble to the sound. My Harley Dealership wants to add a rejet kit, new air cleaner, slip ons and labor for $800. I think that is excessive! Can I just put a set of slip ons on and for go the rejet, air cleaner and labor. Slip ons are only about $225. Will it hurt my bike or change the performance just putting on the slip ons with out doing the other itmes that my dealer wants to do?  

Answer
Install a set or Cycle shack 2" duel exhaust. Thay cost about 258.00 for the set. Install the screaming eagle air/filter kit and remove the low jet #42 and install a #45 adjust the air/fuel screw 3 full turns out from slightly bottomed and keep the same main jet. You will gain about 12 horse power and 15 ft lbs of torque accross the entire power band. cost with out labor=  $403.00   you can do this your self.  Johnny  602-705-7474   slip on will kill horse power and torque