Well, as some of you will remember I was planning on changing my airfilter last time I was home and so, done it the start of march. The airbox wasn't as bad as I was expecting it to be if I'm honest, the airfilter itself however was proper filthy.
Thorney Link
I bought mine from Thorney and it took a little over a week to arrive as they had to order more in.
As far as improvements, changes are concerned, I can safely say that I have noticed no change in the performance, throttle response or most importantly the noise. I had the car on the RR a couple of days later and although I got a Poxy 311Bhp, a mate 2 weeks later got 291 with a 'Normal' M3. So, the 20Bhp is still evident, our mans RR must have been dry humped!
A couple of photos.
