UnderDog Diesel
2011-2016 LML Duramax Downpipe Plugs
2011-2016 LML Duramax Downpipe Plugs
SKU:FullSetDPP
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While many of our products are stocked in our warehouse, inventory levels can change quickly. If you need to confirm availability before placing your order, please call or text 970-778-0792.
Standard drain plug bolts won’t work in the downpipe—the factory ports are too shallow.
Our custom-length stainless plugs are designed specifically to seal unused sensor ports in the downpipe. Perfect for blocking off NOx, 9th injector, and EGT ports in off-road applications.
