These are tuning devices and the user assumes ALL risks. You agree to hold us harmless from ANY cost or damage arising directly or indirectly from misuse of product(s) and to make no claim or legal action arising from the use or misuse of the product(s). Products carry a lifetime warranty and free updates. Warranty void if product is damaged / modified. By submitting an order, you certify you have read these conditions, understand them and fully agree to them.