Instead of getting a y8, just get a B series. The y8's only put down like 130 hp, and unless you're going to boost it, there's no point in swapping the y5 out. Not like there's going to be a huuuuuuuuuuuuge gain.

 

just leave the engine and reap the benefits of awesome gas mileage.

if u want more performance, get another car. sorry if its blunt.

also, is the y8 complete? or are you going to be re-using the trans thats in the car now, because if you do, you're barely going to see any gains in performance...