Well as for the Thunder Mfg. Air Box delima....I took it back to the dealer(already paid them $250 for the oil change and to install the jet kit/air box) and told them that I am not an idiot. No Way a stock air box flows more air especially with the Cobra Slip-ons,and I wanted them to actually put it on the Dyno and use the jet kit that I gave them with it and until it ran right I WOULD NOT be satisfied. So I got back from Mississippi this morn went and picked up the bike,put on my new ULTIMATE SEAT and drove home like a KING and the bike ran like I expected. Very responsive,and plenty of power. Thanx for all the feedback on this topic.