ben beat me to it.

do it for 'something different,' but you will completely throw off the weight distribution and balance of the car. with an average person sitting in the driver's seat, the car's weight dist. becomes perfectly balanced. that's what i call precision tuning... i guess honda knew what they were doing after all! that balance probably cost millions in R&D to acheive wouldn't be worth throwing away for extra power.

but yeah, i guess if you really wanna do it... get a k20a, although its not as simple as 'dc2r chassis > dc5r, k20a > b18c so therefore dc2r + k20a = win'