So I reckon either it "IS" better, or it "FEELS/SOUNDS" better -- so a win for you either way !The bike does feel more peppy, but not sure if it's due to the sound influencing my perception or an actual performance change.
My brother put a Yoshimura full exhaust on his CRF300 ... and I'm convinced it made a difference performance wise. And it sounds pretty good too !
Congratulations