Yeah! Those DSM motors can take a tremendous amount of horsepower, we stopped at approx. 497AWD Dyno Horsepower and 396 pounds of torque. on my 4G63 as they seem to vent the stock block pretty easy after that! They can go much higher but my budget and sanity kept me within reason. LOL!! Not bad for a little 2 liter motor. As far as the Isuzu V6 3.5 I have not seen them at the track so I can't comment on what they can be safely pushed to. I'm happy with my VX, a little more would be nice, but thats the rub at what cost and when do they go booom!! OUCH!!