had my 99 td5 for 6 yrs. its been hammered and towed vans and trailers. I have recently blanked the egr and now I would like to know if this could cause manifold or turbo probs in the future. with the davis chip it easily does 160kph and still under a litre for 10k,s. I may be lucky but no sign of manifold warps or turbo hicups yet. It is a manual trans and MR automotive who installed the chip say it goes harder than an auto.it goes much smoother with the blankoff and inlet cleanout.