Originally Posted by e92involved
Just buy an Akra slip-on when you are ready. More power, not too loud and very nice sound with the top down. I have had this system and it is wonderful. I have now switched to a valuetronic step up and yes it is expensive. Not sure about cut-outs on this car, but it sounded good on my Camero when I was 16!
News flash, valvetronic has cutouts that open/close. So how do you like your valvetronic? What brand do you have or did you have a custom setup made?
OP, I have briefly ran with no catback and the S65 sounds exotically amazing above 4k, however, there is drone below that. And you're letting the exhaust gas heat build up in a pocket right below the center of the car - which is why it was a brief "experiment". The sound was addictive though, I'm contemplating the same thing.