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I would say not worthless, but also not necessary. Isolating as much heat as possible to the exhaust system only is a good thing. My truck also has nothing. I have used the header wrap on my chevelle and found that It works great, but did not last long, it rots away and eventually falls apart.
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Early '99 F350 Supercab DRW 4x4 Handshaker; BD Exhaust Brake; BD Gauges; BD 90hp X-Power Chip; 4" Turbo Back Exhaust; IC Foil Delete; Wicked Wheel; Banks Quick-Turbo Housing; Banks Big Head Actuator; Afe Stage I; Zoodad Mod; Dual Optima Red Tops; Dieselsite Coolant Filter, Housing & 203 Stat; Ranger Heater Core Valve; Rear Firestone Airbags ; Monroe Reflex Shocks.
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