DSM stands for diamond star motors...mitsubishi's but not all mitsubishis...all of the first generation eclipses and cars like that are dsm's when you get to the second generation only the turbo's are dsm's the nonturbo's were made by chrysler, then you got your galant vr-4's and your 300gt's and the earlier mitsu's...most people consider the new evo VIII dsm beacause it is a dsm at heart