Was very straight forward just very fiddly, every time i go anywhere near the engine bay it seems it involves doing things that rip my hands to shreds!!!
Oh well its all good.
The verdict - i am sure i noticed a few flat spots had gone that were there previously, maybe a bit more responsive,and also the sound of the dump valve seems to have got slighty louder!
Now im not sure if thats just my imagination as i had heard such good storys about them or it really has made a difference. Didnt get that much chance to test it last night but will give it another go today.
All in all it seems like 12quid well spent
One thing though, i am still running the standard air filter element, is it a necessity to change this too? if so what one is the way to go and where is the cheapest place to buy from?