I was browsing the web today looking for a Pipercross panel filter, and I came across this: http://www.demon-tweeks.co.uk/produc.../CVIS318&app=Y
They claim quite impressive figures for the kit.
Has anyone on here fitted one to a 330Ci, or do you know anyone who has?
I've heard that induction kits sometimes make very little difference and can actually even rob the engine of power. However, from what I have read, the loss in performance usually seems to be related to the filter sitting exposed in the hot air in the engine bay, whereas the VIS system seems to relocate the filter in a region of colder air (or so the makers claim).
Is it worth the extra outlay compared to just a panel filter?
BTW, I'm also having the car remapped.