Anybody done the Golf Tee mod on a 318i?
Hi, has anybody do the golf tee mod as i have been now told on the 318i? i have a 2012 and wondering if it is any good, does it increase fuel consumption? will they void my BMW warranty if found out if error code comes up? i have searched this topic on here but without success, any answers or DIY would be much appreciated. thanks in advance
Last edited by bigbeemer; 01-09-2013 at 05:48 PM.