i love it . i kinda liked the look of the older one better at first... but change can be good. when i got it i didn't know it was the SPII, so i was shocked when i took it out of the box. i had never heard of it before... it's been on for over a month now... i got it certified too... now i can't get sweated for it. i like the sound of it when my car is still warming up... it kinda has that G35ish sound comin from it. and the butt dyno tells me i get better throttle response. much improvement over my old exhaust. the only problem i have is scraping the piping on stuff... especially at the police station i hate that place.