hi guys I've got a yaris running a 4e-fte lump with a motec, 2.5" straight through pipe, bigger induction filter and a front mount intercooler and just been mapped with 22 degree charge air temp, i recently raced another starlet with a different exhaust manifold and a upgrade on the air induction and it beat me quite well, the engine came out of a ep82, im just woundering is there a difference in power output from the two models as this was a ep91? or is it just due to the age of the engine, or has anyone got any ideas on maybe checks i can do that might possibly lead to discovering the fault,