I suggest you take them back to where they were purchased first, go through the chain they were purchased. If all else fails then call 1-877-828-7177 and ask for Dale gardner in customer service. I quicker solution will be found through a phone call
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Steve
Leading Edge Pro Shop
512-755-2947
e-mail tekneek@281.com
www.dynothane.com D/T Customer Service 1-877-828-7177
Use option #1.
Capt Ramius "Vasili, give me one ping, and one ping only"