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Video: The Technology Behind Proform’s Stay-Tight Header Bolts

Video: The Technology Behind Proform’s Stay-Tight Header Bolts


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Ever get tired of constantly re-tightening the header bolts on your muscle car? Proform has great solution with their new Stay-Tight header bolts, which use an inventive cam-lock washer design that turns vibration into even more holding power against the bolts. Hit the jump to watch the video…


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