Horsham developments have a very good name and are highly recognised as very good engineers. For the money, I would say the plenum spacer is the most cost effective power gain along with decats and remap.
I'm not really prepared to decat as I can't be bothered with the MOT hassles on emissions every year but the plenum spacer looks like a good purchase to go along with the UpRev. I believe Abbey can account for the spacer and tweek the map slightly also?
Is this: http://www.h-dev.co.uk/product_info.php ... s_id=25052 the one to go for or are there better kits around?
Cheers guys
Dave