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The Diamond Eye 4-inch stainless DPF-back kit for 2011–2013 Chevy/GMC 6.6L Duramax 2500/3500 is supplied as a single turn-down stainless assembly sized at 4 inches. This kit replaces the diesel particulate filter back section with a finished single-outlet configuration and is listed for the stated Duramax years and chassis. Confirm cab and bed length requirements to ensure correct fitment for the application.
Diamond Eye KIT 4in DPF-BACKSGLTD SS 11-13 Chevy/GMC 6.6L Duramax 2500/3500
