get the same prob mate.

I understand chipping is an easy if pricy option, bar that, performance filters and exhausts, but i don't know which will suit,

also wondered how easy/possible it is to retro fit intercoolers on the standard D models

 

yeah i think the intercooler gives a extra 10 or so brake would be inresting in getting one on.

 

I have an intercooled model, sometimes the possibility of removing the catalytic converter crosses my mind reducing exhaust backpressure. I believe it doesn't increase power much but the better exhaust flow makes the turbo pick up quicker especially at low engine speeds. My concerns are does it effect insurance? and will it pass an MOT?

Does anyone know if it's possible to have a variable geometry turbo fitted, if so how much would it cost? and insurance?

 

chipping is most effective, or getting a tuning box

winding the psi up a bit is always helpful (boost gauge and bleed valve), on the non intercooled diesel you can also increase fueling slightly by turning the screw on the fuel pump 1/6 to 1/8

breathing mods ie filter and exhaust are always helpful, I've got a decat and it does improve throttle responce slightly although I wouldnt hope for a power increase

luckily for you the decat will pass an MOT on the derv because the emmissions dont change much (from what I've been told)