hello i bought myself a sierra cosworth 4wd
and the previous owner tells me its got a closed loop system from MSD and i think also the wasted spark
can some one tell me which parts are included and what has been done/changed to fit this system
and also is it normal to do the lambda in the exhaust housing of the turbo (see pic)
and can this turbo still be used for a 2wd know
lots of questions and i hope someone can help
thanks