Stage 8 Locking Header Collector Bolts are easy to use and they are real assurance against horsepower loss or noisy exhaust leaks created by loose nuts or bolts. This unique patented and trademarked functional design is just four pieces: a grooved bolt (Zinc Plated Steel), a locking retainer, a spring clip and a threaded lock-tab. The Locking Collector Bolt Kits will work with all headers that have a bolted flange and include six unique and patented grooved 3/8 X 16 X 1” bolts, six locking retainers, six spring clips and six threaded lock-tabs.
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