Dont do it, hold out.
First off, I dont know where everyone gets the idea of the peak power on these things. Every dyno I've seen says otherwise. I know exhaust mods move stuff around, but not that much. At least not that I've seen. (someone else that has seen dyno numbers should chime in here)
3RZ has 150hp at 4800RPM and 177ft lbs at 3800RPM
2RZ has 142hp at 5200RPM and 160ft lbs at 4200RPM
so its more than just peak numbers, its were the power is.
