DIESELR Cat & DPF Race Pipe (2007.5-2010 GM 2500/3500 6.6L Duramax LMM)Cat & DPF Race Pipe Duramax LMM (2007. 52010 6. 6L GM 2500 3500) The DIESELR Cat & DPF Race Pipe for Duramax LMM trucks is built for 2007. 52010 GM 2500 3500 6. 6L models. This system eliminates factory restrictions to improve exhaust flow, reduce temperatures, and support higher performance tuning. Built for off road and competition environments, this race pipe offers unmatched reliability and fitment. Durable Construction Built from 16 gauge T409
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