I have a few friends with IS300's turbocharged with factory IS head(ported and polished) making 500+ RWHP, by doing this they have kept a pretty smooth idle and since the heads are VVTI unless you open her up it will run like a lexus. I will also run the aem plug-n-play system upgrade the fuel system and might have to change to rearend and or rack-n-pinion. I am open to all your suggestions so please dont hesitate to tell me anything. Thanx
And if anything i said is incorrect please correct me. Thanx
