Originally Posted by BMW_Belgier
Now you guys get me worrying
My PE has the golf tee mod now. If i enable the valve again when i would install the DP, would this compensate the extra noise?
And if you have the BMW Performance Exhaust, you don't have the golf tee mod, or if you do it's not really doing anything. The PE doesn't have the valve in it like the stock exhaust.
If you want quiet and more power, just go with a Tune