derby dave
Registered user
a previous owner of my gsa 05 has drilled 3 10mm holes in the top lid of the airbox is this some sort of mod for the bm"s i would have thought with having a intake tube the engine would rely on airbox pressure especially at speed but i could be wrong


I will have a scout around at the weekend.
there was a lot of airbox howl if you know what i mean which got me wondering about the airbox pressure thing
