G goon Senior member Swansea Dec 13, 2012 #1 Has anyone changed one of these before or is it a dealer job?
P Philly_Sweden Member Dec 14, 2012 #2 I changed them on one of my previous M3's E46 (same engine), both intake and exhaust-side. Intake is a peace of cake, exhaust in PITA but you can fix it yourself! You also have alot more space to work with ,with the Z4 then with the M3. Good Luck!
I changed them on one of my previous M3's E46 (same engine), both intake and exhaust-side. Intake is a peace of cake, exhaust in PITA but you can fix it yourself! You also have alot more space to work with ,with the Z4 then with the M3. Good Luck!