Ok so now im really confused.. I havent messed with the bleed valve as I realise what I could do but is it worth buying one of these £20 ones off e bay and will it be safer and easier to raise my boost a bit with it? My cars only running bout 10psi and I want to raise it to bout 13-15 safely. Will I be able to do this with the boost controller easily and safely???? Is it easy to fit?? Thanks