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Amazon.com: Daystar, Universal Firewall Boot, Single, Accommodates 3/8" to 1" Diameter Wire Bundles, fits any vehicle that needs a wire loom, KU20040BK, Made in America , Black : Automotive
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Amazon.com: (3 Pack) Universal Firewall Boot - Safe and Convenient Firewall Grommet Kit Can Accommodate 3/8 Inch to 1 Inch Wire Bundles : Automotive
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Amazon.com: Universal Firewall Boot Pack of 2, For Wire Bundles 3/8" to 1", Quick & Easy Grommet for Running Cable Through Firewalls & Bulkheads Safely, Compatible with Any Vehicle : Automotive
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How to: Run wires through the firewall - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community
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