Diamond Eye KIT 5in DPF-BACK Single SS: 2011-2015 CHEVY 6.6L 2500/3500

If you're looking to get more out of your 2011 or 2012 Chevrolet Silverado 2500 HD or 3500 HD, or its GMC Sierra counterpart, this 5-inch DPF-back exhaust kit from Diamond Eye Performance is a solid option. This system is designed to replace the factory exhaust from the Diesel Particulate Filter (DPF) back, giving your 6.6L Duramax engine a less restrictive path for exhaust gases to exit.

Diamond Eye Performance uses CNC mandrel bending to ensure consistent tube diameter throughout the system, which helps maintain smooth exhaust flow. This particular kit is constructed from 409 stainless steel, a well-built material known for its resistance to corrosion and heat, making it a durable choice for the demanding environment under your truck. The 5-inch diameter is larger than stock, allowing for better exhaust gas scavenging and potentially a deeper, more aggressive exhaust note.

This kit is designed as a direct fit for all cab and bed lengths on the specified 2011-2012 Chevrolet and GMC 6.6L Duramax trucks. While it's not CARB approved and cannot be shipped to California, it's a popular choice for owners looking to improve their truck's exhaust system performance. You'll want to check the manufacturer's installation instructions for any specific hardware or procedures required for installation, as this kit focuses on the main exhaust components from the DPF back.