This is a very cool device. It installs on your stock seatbelt and lets you tighten up the lap belt as much as you want by simply tugging on the shoulder belt. This helps keep you in place on the autocross course, the race track or even just when you're playing on the street. For normal use, it can easily be turned "off" and your seatbelt works normally. If you've ever experienced the difference in controlling a car when you're firmly held in place, you'll understand just how useful this little thing is.

Nobody will admit to it being a safety item thanks to the lawyers but testing shows it will not affect the function of your existing belts adversely. One CG-Lock fits one seatbelt. Makes a great gift for your favourite gearhead.