can i run green 803 an a 3bar map sensor on my 4door 4x4 cosworth not sure if its chipped its got a exhaust air filter 500 i/c got a rolling road out read out of 270 bhp as im looking 2 get a bayjoo chip soon is it easy 2 fit

 

sounds like it has a stage one upgrade chip to make 270bhp,
i think you will have to upgrade to the 330+ bayjoo chip to run
the 3bar and 803's.

 

the car will be fine without stage 3 chip but i wouldnt really drive the car hard cos it best to get everything set up.The chip is quite easy to fit its just a case of unplug old one and plug in new one.the ecu is behind your glove box i believe.(i have 2wd and ecu is in diff place.)but once chip is in i would get the car set up just to be safe