I stand against Nitrous use, build a good turbo engine and use an intercooler sprayer and good parts, Nitrous damages the engine over time, is 5 bucks or more per pound to refill, as well as most tanks are 10 to 15 lbs, so yea 5 times 15 every week or so, yikes. Even if you build the motor heavy the boost and the Nitrous will make it require routine torque checks on the head etc and after a while cause a neccesary rebuild, usually twice as fast as if you jjust ran a good hig boost turbo system. Nitrous isn't worth it, Only Supra's I have seen even need it are 900+ HP and even then they use a direct port system to maximize safety and only jet 50 to 75 max 100 to 150 hp shot is excessive. Thats my opinion