I agree, if you have the money get the right converter. Converters are very important. If you run spray on a loose converter,(one not for spray) it will just blow through the converter and basically all that will happen is slippage and time loss. One more thing it is hard to get the best of both worlds converter wise. I mean if you have a nos converter your car will take off sluggish off the line on motor. If you have a converter not designed for nos then it will slip.