It's the "correct" motor for the chassis! Not only that, it's period correct to the tuning scene; when the chassis was new that was the most desirable, but unaffordable, engine. My H22A EG paled in comparison to my friend's B16A EF, those motors are just so rev happy and always egging you through the gears, I can only imagine the B16B is all that and more, probably a couple pounds lighter than other options too. These yuggins just want power.