Re: no air filter?
A much more sensible mod is to move the seat foward about 30 to 60 mm. If you have had the car for sometime you will notice a huge difference in throttle response and power. The longer you have had the seat set back, the greater the difference you will notice. As a bonus it helps braking perfomance too. Much better than an upgrade. Try it...works wonders. The only downside is having to adjust the fader on your stereo.
rev@IRC. EB 3.9 auto. VDO head unit, Focal and Sony speakers, tinted, mags, pacemakers, hi-flow cat, 2.5 inch exhaust, K&N, slotted.