DIESELR Cat & DPF Race Pipe (2015.5-2016 GM 2500/3500 6.6L Duramax)The DIESELR Race Pipe Duramax LML for 2015. 52016 GM 2500 3500 6. 6L trucks delivers reliable off road performance with unmatched durability. Designed to replace the factory catalytic converter and DPF section, this system is precision built from 16 gauge T409 stainless steel for long lasting strength and corrosion resistance. Unlike standard kits, this exhaust is mandrel bent for optimal flow and includes reinforced flanges for a tight, leak free
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