I just got my MR2 and was wanting to know what mods i can do to the 4age motor, that is until I squish the 3sgte in. Is there any performance sites for the 85-89 model. any help would be great...thanks

trdracing.com is a start they have cams from AEM, header, and cams. If you gonna change the internals JE pistons and crower rods also if you check ebay u can find the intake and adapter plate for about $30 finally have the head ported and polished.

first of all if you plan on putting a 3SGTE engine in your car i would suggest leaving it stock and saving up for that. But if you want some little mods to get a little more hp just get intake, exhaust, and a header. Will net you a little more power. But the NA motor will not be a FAST car unless you dump a lot of money into it.