mk3 is the 86-92 year of the supra where the mk4 is the 93-98? i think 98 i believe they kept producing them in japan till 2002 but weren't exported
best filter found thru tests was the apexi air intake but there's many around
i would assume you have the 7mgte supra so you would need to visit one of the supra sites in the faq section and buy a bolt on from them and an intercooler piping kit... this will extremely improve the performance of the car
nothing else should need doing, bolt up and go
unless you go and up your boost something silly then you'll need fuel upgrades
