okie dokie, i've got a header for a gen 3 3sge (as the title suggests). it came off an ST202 celica (i.e. import to oz, 3rd gen 3sge), i think its the same engine as in the mr2's. BUT i think it'll only fit on a fwd as it is - its 4-2-1 down to the cat, JASMA approved, and full stainless steel (v.nice )
i've had a few ppl suggest that it might fit on a 3sfe engine too - celica and camry, but i've got pics and all the dimensions at the link, so get it measured up first so you don't have the same problem i did!!!
DO you know if it will fit a gen 2 3sge, I am looking for a cheaper way to get some extractors happening for my rwd 3sge in a celica and this looks like an alright option.
i'm pretty sure it won't fit the 2nd gen (3sge) but if you follow the link above and have a look at the pics and the dimensions of the ports and bolt holes you should be able to work it out pretty quick