i have a 2002 wrx full de-cat,sti intercooler,uprated fuel pump,filter and dv12 dump valve it has the standard turbo on and i was wanting to uprate it.Could anyone tell me wot the benifits of a vf36 spec c or a vf37 twin scroll would be.They came of a ver 8 jdm sti would either of these turbos fit straight on,after i fit a new turbo i will get it remaped thanks for any info cheers MO MO