Read this before you use this product. My advice may extend the life of your vehicle even if this product does not fix your head gasket leak.

I've only had The Flex Belt for about 2 or 3 weeks now and I'm digging it. I had been pondering getting something like this as I am a bit out of commission with a lot of core exercises due to a flair up of a chronic neck pain that I have been living with for many years now. So doing a quite a few of those exercises are out. This gives me something, at least. For an electric muscle stimulation gadget, it works quite well but doesn't have that feeling as if I'm being poked in the gut with a cattle prod, like the AbTronic did back in the day. Since my core is already pretty strong from the workouts that I am able to do, I can probably stand for a higher level of intensity, but do understand that there must be limits for safety. To compensate for this, I will go through all 10 cycles within my session of use for the day. I also wish that the movement from 0 to 150 would go a bit faster because I lack patience. But that is my problem, not the belts.