THE BEST SIDE OF 4AGE 20V ITBS

Re: ITB Conversion on 16 valve 4AGE On my inventory bigport AW11 a leaking exhaust manifold gasket brought about the O2 sensor to go through lean and it pumped gas to the motor. Gas overall economy plummeted until I sorted it out.iirc the throttle opener is utilised together with the ISCV as coldstart airsupply... which you still may possibly want