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On my car there are tabs welded to the 2" header tubes and tabs welded to my collectors. They have holes to be able to secure the 2 together. With the bolt and nut tight, why do you have to spend money on tethers? Sounds political to me. 
Its simple really, insurance liability control. Every safety standard helps maintain insurance costs and limit liable damages accrued to the policy holder(NHRA). I bet those few incidents where people were injured by collectors coming off caused insurance to go up or created a policy change. Therefore a safety regulation was mandated. Just my .02
Last edited by Adrielp; 01/17/14 01:08 PM.
