the 2004's have cast pistons, most dont recommend running a 200 shot, 150 at most. The cast pistons dont do well with nitrous. You want to make sure the tune is dead on. I would recommend having a fire extinguisher on hand as well as you never know. Having said all of this I run a 200 shot with my 2004

These V10's love nitrous. The torque curve is insane when on the juice. Some see around 800rwtq with a 200 shot. I dyno'd 741rwtq running rich.