2011-2015 GM 4" Cat and DPF Delete Pipe, without bungs, Stainless Steel. 2011-2015 GM 6.6L LML Duramax Diesel (Does NOT fit trucks equipped with 3-bolt flange downpipe) Simple bolt on installation for competition use. Utilizes OE style connections to ensure a proper fitment. Manufactured without sensor bung connections. Does NOT fit all cab & chassis trucks. Must be used in conjunction with an electronic tuner on all application. Competition Exhaust Systems products are SOLELY for Competition use. Highway or recreational use is prohibited by federal law.
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