Recent content by TeamBirch

Thank you for this, I’m working my way through this, very interesting. I think mine will not be as extensive as this!

Hello, new to the forum and relatively new to Z4 ownership. I have a 2007 E86 3.0si that I got specifically for track use. I am gradually making upgrades to the car (and my driving skills) to make this a track weapon. So far I have changed the wheels and tyres to 18” Michelin Cup 2’s, added a...