I've recently got hold of a second hand but unfitted FMIC kit complete with the CAK - can anybody tell me what size air filter to get?

 

Depends on what power you are heading for.I recently fitted one and was told by Harvey himself if going over 400bhp to ditch the CAK and fit the biggest under bonnett filter you can squeeze in.
I went for a RCM one and trumpet

 

the biggest that will fit in the wing

 

I know I want as big as possible but need to know a part number etc. that somebody has tried as I won't be doing the fitting and don't have time to go up to the garage, and check sizes etc. Does nobody who's fitted on of these have a part number for the filter they used?

Long run when I uprate the turbo I'll be going RCM and running MAF less as I will be on Syvecs.

 

Do you have a trumpet built into the fog light etc? Do run too big a filter yet on the other hand don't run to small filter too.

I have a big-ish filter in mine and runs a treat. Intakes etc all fine according to JGM when out in the car.

Got mine from Graham Goode Racing (I think) or Japspeed. Comings with adapters and it will fit spot on to the CAI pipe work.

Steve