So there is a guy that i work with, who happens to own a IS350, and basically he wants to run some time to see what his car would do against mine.. his car is stock for now but he is planning on doing an exhaust and intake. We are actually going to wait until the spring to take it to the track and see what they can do?? so saying i through some gears, and finish my exhaust.. i have a feeling this shouldnt be all that close or am i underestimating him??