obvious

Scuse the noobie post, but I presume the obvious engine mods are? Exhaust Intake Forge Recirc Chip FMIC So what else can you do to extract a bit more bhp without changing injectors and the turbo?

Seeing as a 1.2 is all im gonna get with half decent insurance seeing as i aint been driving long...(although it seems many say theres not much to gain out of a 1.2) is there anything i can do to the 1.2 without insurance noticing?!:shrug:

Hi all I'm looking to get a Leon Cupra 1.9tdi. I found one that looks ok to me but is there any major and obvious things I should look out for when buying? Whats the deal with the remaping o is that just on petrol engines and also the thing about drilling holes in the airbox? Cheers