Chevrolet Silverado 2500 HD Performance Exhaust - aFe - Twisted Steel - `11-`14
Chevrolet Silverado 2500 HD Performance Exhaust - aFe - Twisted Steel - `11-`14

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Chevrolet Silverado 2500 HD Performance Exhaust - aFe Twisted Steel (2011-2014). Purpose-built headers, up-pipes, and down-pipe for the 6.6L Duramax LML to improve exhaust flow, durability, and serviceability.
Engineered for the demands of towing, work, and performance driving, this 304 stainless system combines precise mandrel bends with robust connections and true bolt-on installation. Optimized tube geometry supports pulse control for efficient scavenging, while heavy-duty flanges help maintain a tight seal under heat and load.
Features
- 304 stainless: .120 in. wall headers and up-pipes; .065 in. wall down-pipe
- Optimized tube lengths and mitered collectors for pulse control
- CNC-machined v-band inlet and heavy-duty outlet flanges
- Two EGT ports: 1/8 NPT (manifold) and M14x1.5 (down-pipe)
- Retains EGR flange; uses factory mounts; hardware included
- Fitment note: not for post-July 2014 models with 3-bolt down-pipe flange
Questions or need guidance on your build? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer professional installation and customization at both locations.
Thinking about multiple items? Contact us for shipping discounts. We install on premises at both locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

