no, though I'm not sure if it's impossible to tap there... I'm only aware of boost controlers hooked on somewhere between turbo and wastegate. there are different ways of controlling it, including electronic controled. check mo nalang sa racing shops kung ano ang available...

some info on boost controllers
wikipedia

piping nga ang biggest problem. kung may bendable hose available. ok yun.
mounting intercooler in front could risk acceleration responsiveness. but would gladly be proven wrong. mas ok nga doon ilagay. my intercooler is really hot, after hours of travel, I can't put my hand any longer than 2 secs in the body... planning to add relay and additional fan (small 12v cpu fans)

intercooled Pajeros without airscoops has long vertical fan below though...

after installing the intercooler, you can increase your injection pump governor to deliver additional fuel needed for higher air flow and power of higher boost pressure. but since it has boost compensator valves. I didn't adjust mine. but the uk friend adjusted his...