Thank You all for being nice enough to post replies! There's got to be someone on here with a PCII and D&D slip-ons. I probably am going to have the bike dyno'd. But in the meantime the Tuner told me the closer I get it myself---the less hours he'll spend---less money. I heard the pipes are loud as hell too--we'll see---might be temporary. I got both slip-ons brand new for $250---worth a try!