Guys i want you to check this out and tell me your opinion. Mk5 gti guys agrees that this one's the best CAI so far.

North American Motorsports: AEM Cold Air Induction System (2.0T)

You think that it will fit my 07 octavia RS ? Infact i am happy with my K&N 57-0570 induction kit but extra gains won't be bad ha ?

you wouldnt wanna be driving through puddles with that i bet, looks like the airfilter is right down by the bumper. 251 pound, id prob just buy the evoms

Had one of these on a Civic VTI- awesome piece of kit! Have a look on Ebay- I got mine for around £120 from a dealer on ebay.com

AEM do a cheap valve that stops water ingress, although I doubt you'd need it with all the undertrays on the car.

From what i have seen on here and read elsewhere the best system for the 2.0 TFSi is the EVOMS

www.evoms.com/marketplace/ViewProduct.asp?Now=1%2F11%2F2009+6%3A39%3A53+AM&ProductID={8CDEE7A3-3B09-44FD-88D7-731C5B329E41}&OrgID={CA5E16BC-D877-4137-8237-7EB9084DD3D8}&ParentID={8D042F86-B4DE-4927-B971-1A62E17E6AE4}&Curr={8D042F86-B4DE-4927-B971-1A62E17E6AE4}

Carl

The evoms CAI is really a good choice too and also there is an option to buy it with the new engine cover.

that link puts the price at 200 pound(not incl deleivery) compared to 310 pound in uk(not incl delivery)thats a bargain