well mate , everyone knows iam mates with ian but i would not stick up for his products if they didnt work its as simple as that , but they do and they are provern. plus if there was any issue with the inlet iam sure harvey and ahmed would of seen some sort of issue between cylinders and maybe cause det issues but ahmed had the det cans on and said its a solid engine so i think i will choose them over somebody who says he knows better

cheers paul