You better give some tips about this one
Air filter. A simple, open filter. Simple one, like this;
http://www.turbotrix.com/images/k&n.jpghttp://www.turbotrix.com/images/k&n.jpg
Pleaseee help...digital tacho will be tricky but Ill do it...and this shounld be no bother.
What material can I use for filter? Some kind of sponge?