hi guys, having a few problems with my GT, over the last few months its not been feeling as good to drive as it did when i 1st had it, its had new plugs, leads, oil and oil filter wich helped a little bit but now it just feels the same again, the problems i'm having are - juddering when pulling off, allmost feels like the car looses all its power and nearly stalls idle speed is all to shit, some times on a warm start up idles at 500 prm really late boost, comes on full boost at about 4500 rpm on a ct9 with air filter re location, standard mani and decat and i've been told that its running ritch (only by my mate who knows a small amount) the mods i have are - fmic air filter relocated to the grill decat and ss exhaust hks bov uprated fuel pump i hav allso noticed the car has an aftermarket ecu left on it by the preveous owner, it dosent hit fuel cut till 1.0 bar and goes well past the 180kmh on the clock i was going to try an unplug the ecu and see if i can run it on the standard one ?????? any info would be great cheers guys !