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The Duramax 6.6L Diesel Fuel Rail Plug for the 2004.5 to Current Model GM 6.6L Duramax powered trucks. Installation of a 6.6L Duramax Race Plug eliminates the unwanted pressure relief of fuel rail when running a high performance tuning device. KLM Performance offers FREE SHIPPING on this item. Duramax Race Plug - Fuel Race Valve 2004.5 to 2010 GMC Duramax LLY / LBZ / LMM / LML motors.
This 6.6L Duramax Race Fuel Rail Plug cannot be used on any vehicles registered or certified for highway use. This Fuel Rail Plug is a high performance Duramax 6.6L Fuel Rail Plug that is intended SOLELY for closed-course racing use and is not street legal in ANY state.
This 6.6L Duramax Diesel Fuel Rail Plug is MADE IN THE USA!