- 1,087

- Toronto
- BlackIce49
Man, my Z4 won't reach the 308HP and 486PP you want with the Titanium Semi-Racing Exhaust that you advice, it's the T. Racing exhaust
Yes I want the Semi-Racing exhaust. You need to break in the engine first for the HP to go up, about 300kms (180 Miles I think, just a guess).