I know, but it is hard to find in norway... So i was wondering if the 2.5" will work..

 

Doesn't the greddy kit come with an adapter for it? I think you can cut that one and use it to go to something useful. Otherwise just get a really good T-Bolt clamp and ratchet it down.

 

Yeah, unless you like dirt,dust, whatever animals and **** going through the engine.

 

Ha ha.. dead animal babies...

If your car is used on the street then yes, use a filter. If you're racing it and you're getting maybe 300± miles per engine rebuild, then no, a paper/fiber filter is typically too restrictive (assuming your engine is built with extremely high tolerances) to have any benefit. Use a steel mesh filter on the inlet housing to prevent animal babies from entering there and coming out as dead animal babies, ha ha ha.