Hi i have a jetta td and want to get a bit more from it . I have fitted an inter cooler from an 03 astra 1.7 td( and fed cool air to it)(if any one wants to know how send me an e mail and i will send details and photso,its easy and cheap), Can the boost now be upped because the air is cooler, Can i do this with a bleed valve or will i blow the engine, Any help will be appriciated, I miss my pre-parent hod gti days sorely! [:^(]