Hi everyone. As a shop owner (tires and mechanic services), I saw a lot of different product to fix tires. First the product offered by Amazon is a very old stuff, these plugs are made of fabric and coated whit some rubberized product that usually dry out and on a longer period and tend to leak true the fabric as the coating dry out. The best repair is the patch/plug. It fills the hole and re-enforce the the tire from the inside. Remember that most of the time, wen something puncture your tire it cuts a few steel belt and open a way for water to reach the undamaged steel belts. The patch/plug is the best because block the hole and prevent water to make the belts get rusted and re-enforce the tire where the belts where broke. Second, on low profile tires like ours,you don't have to drive very long to get the interior of your tire shredded. The problem whit any plugs repair is that you don't know if the interior liner is damage or not. Many time I saw tire badly damaged inside whit very small or no damage on the outside. If you have a flat tire tire and you are absolutely positive that you did not ride on a low pressure tire then you can put a plug but if you drove on a low pressure (even a short distance), have the tire remove and check the inside for damage. The dynaplug system seem to be a good product as long as you have a small compressor to refill the tire. If you drove on a low pressure tire, you can use a plug, adjust the pressure and have the interior of the tire check asap. Third I don't want you to think that I am trying to scare any of you and as a shop owner I am trying to sell the idea of going to a shop every time you have a flat tire but after 33 years in a garage I saw a lot of situations that could be avoided. These cars are fast and safety is not an option.
Sorry about my english, but I am sure that you do understant what I am trying to say
Steph.:seeya: