Thanks guys, but I am really curious just to see what gain someone got from a stock crossfire, but I would expect a 50 shot would lower the quarter by about 1 second. I am very knowledgeable on using Nitrous itself, I had it on 2 prior cars and contrary to the nasty rumors that NOS blows up engines and increases wear, that is especially not true on a 50 shot. All Nitrous is, is a chemical supercharger or turbo, absolutely no difference to your engine than adding a turbo or supercharger. Both ways you are increasing the oxygen that can be burned in combustion. With a supercharger or turbo, you force it into the same cylinder volume under pressure with Nitrous you are adding more oxygen to the air mix chemically. The only way Nitrous wears or blows an engine is when there is not the right amount of fuel added to compensate for the extra oxygen, but a turbo would cause the same damage if a rising rate of gain fuel pressure regulator wasn't used or the stock fuel pump couldn't keep up. The NOS bad rumors come from the guys taking short cuts and not upgrading the fuel pump, when they go to a 75 shot or higher, or not get the jetting the fogger correct, both which cause a lean condition and possible damage. Also, not retarding the timing when using a 75 shot or higher, which causes an extreme heat increase from the excessive compression change (retarding the timing 3-4 degrees for every 40 hp of NOS, decreases the compression to compensate for the increase). As far as warranty, you just have to be smart and remove the tank and lines before bringing it in (cover your tracks). I ran 200 bottles through my '85 Supra, and never had a single problem or sign of engine wear. I sold the car with 250,000 miles with the original bottom end and it was still running strong and not burning any oil. I had a '93 MR2 turbo, that I also put 30 bottles through with no problems (which was a 12.2 second car) My friend is still driving the car today as his daily driver and it runs like new. Again, just be knowledgeable on what is happening when you use NOS and install it right, but also check the plugs after a night at the drags to make sure all cylinders are getting the right amount of fuel.