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Overall Rating 4.5 nitrous bottles!
Honestly, I can't say enough good things about the Koul Tool. It works better than they claim on their website. This is one of those products that makes you say to yourself, "Why wasn't this invented 20 years ago?" When I first purchased the Koul Tool, I thought it was a bit pricey. After the first test used for this review, I realized that it was a pretty valuable tool. I have since used it on 3 more builds and come to the conclusion that the Koul Tool is worth every penny. If you are a chassis or engine builder, this kit is a must-have for your shop. You may actually want to have a few on hand if you have multiple ongoing projects. If you are working on your personal car and planning on plumbing from the tank to the carb, this kit will save you a lot of time, headaches and bandages. If you can't afford the kit, get two of your buddies to chip in $25 apiece. You'll be glad you did.