Hybrid Racing ZDX Throttle Body AdatperThe Hybrid Racing ZDX throttle body adapter allows you to bolt a throttle body from an Acura ZDX engine onto your 2006 15 Civic Si. The ZDX throttle body has a larger bore than your stock throttle body allowing your engine to make more power. Expect to pick up between 2 10hp depending on the other modifications you have installed. We recommend port matching your intake manifold to 70mm and tuning with a Flashpro to maximize power and driveability. The