After taking 3 hours to fit and a lot of messing withing trying to move the battery a little to make extra space the CDA is now fitted.
Definately worth the money and much better than the K&N than my car came fitted with. RR proved 148 at the flywheel which I thought was quite good considering my 16 valver has done 65K and only has a Magnex cat back system in addition to the BMC filter.
Not sure if a ram scoop will make it even better. Will have to see what the Nick Hill item is like. Does this not promote water entry into the filter?