I'm ready to lay down some serious cash on some tuning products, but still haven't heard of any specific mod for the z4. I'm not certain if the 135i N54 products are compatible or shall we wait on specific z4 tunes?
My buddy picked up an ISF and its pretty fast. The viper doesn't have a problem beating it, but I want the z4 to represent
So far I've been hearing a lot about Vishnu and JB3. But the websites don't list anything in particular to the z4. Also their boost air vent boost gauges is a must have for me if they ever release an overlay for the z4.