hay guys complete novice when it comes to tuning engines... thesis my first turbo and first diesel engine so you might need to explain things a bit clearer for me... right I've just fitted a boost gauge and k and n air filter to it the boost gauge is telling me I'm getting about 13 psi ... i want more power out of the engine and i don't know where to begin any help would be greatly appreciated also as many pics as possible I'm no mechanic cheers all