Afternoon people.ive been finking about going big turbo now but im nt sure how much wrk and effort would be involved.ive been looking the the gt28rs.would i need to change the internals ect and how much would it all come to.the car has done 80k now and im nt sure if i should keep it or just get another car like a evo or sumat.So far the car is mapped with 3inch downpipe,dv,filter ect.it doesnt have a fmic yet bt i just want more power.