| There are several types of " JHP" undertank filter.
I have just replaced the the type that forms a tube between the two airbox intakes on a 998 with pipercorss filters in the carbon air tubes.
The mark 1 backside dyno seems to indicate improved throttle response, better pull at low revs and various other subjective points and the ears less induction roar. (no mesh fitted before and after)
Off on the dyno in a week or two's time to do the "after" figures power figures.
Ray.
[Edited on 20-5-2005 by Ray] |