I think you and Ken are right pipe airfilter and tune , power commander.Best bang for the buck.When I said pulling it to bits, I meant major surgery.
These days with the emissions regs., pipe[s]/air filter and tune are almost mandatory


Dinosaur.

"Oh Man I only ride 'em.I don't know what makes 'em work". Donald "Oddball" Sutherland

"Don't let the bastards get you down". Kris Kristofferson

"I am only paranoid because everyone is against me". Larry [Frank Burns] Linville