23-06-2012, 08:42 PM
Just helps the intake all run cleaner. The standard car has a check valve that should stop the oil passing but they rarely work properly and let oil through.
Team Eaton
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft