BLOX Racing Throttle Body Shaft Seals - 03-07 Mitsubishi EVO VIII / IX (4G63T) - BLOWOUT compact brake master cylinder This style of shifter mounts

This style of shifter mounts on top of the exhaust tunnel

there is no other engine like this in the US

Constructed from lightweight aluminum alloy

Your Si comes equipped with a very capable intake manifold from Honda

Stress Analyzed

BLOX Racing Throttle Body Shaft Seals - 03-07 Mitsubishi EVO VIII / IX (4G63T) - BLOWOUT compact brake master cylinder This style of shifter mountsALL SALES FINAL BLOX Racing offers heavy duty shaft seals for 03 07 Mitsubishi Evolution VIII and IX OEM throttle bodies. The OEM seals are known to crack over time and leak boost through the throttle body shaft affecting power and performance. BLOX Racings high boost shaft seals are the perfect solution to replace OEM seals and prevent boost leak at the shaft. Sold as pair.