orginal yaris 2005 1,5 turbo 150hk

[CASTREX]

Originally Posted by mrloseth

i got 0,5 bar boost at 1700 rpm and i have the same boost att 6200 rpm.. the car is now totaly stock.. so you think that it wouldnt be a problem to bouild exhaust now?:)

if you are running stock boost on the original ECU you are OK to build an exhaust.

OK so you are hitting full boost at 1,700rpm so it seems like you are running a bit lean from 1,700rpm to above 3,200rpm I would still think about some sort of management like a emanage, SAFC, AEM FIC so you can load a smother curve. But overll you seem to be fine. TRD knows what they are doing... and as long as you don't raise the boost, an aftermarket exhaust should not be a problem.