PPE 116120710 High Flow Up-Pipes | 2007.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM

Features: - 53 percent more flow than stock pipes - Designed for 2007.5–2010 Duramax LMM engines - Direct bolt-on fit to factory manifolds - Made from 11-gauge 304 stainless steel - Internally sleeved bellows resist fatigue and cracking - Withstands high heat and pressure conditions - Improves turbo efficiency and spool time - Reduces drive pressure and lowers EGTs - Ideal for towing and performance applications - Replaces factory up-pipes known to fail - Built for long-term reliability and strength - Great for stock or modified Duramax builds Give Your LMM The Flow And Strength It Deserves If you're still relying on factory up-pipes in your 2007.5–2010 Duramax, you're leaving both performance and durability on the table. The PPE High Flow Up-Pipes are the upgrade your truck needs to breathe better, spool faster, and stay cooler under pressure. Factory pipes tend to crack over time due to the constant abuse of heat and pressure, but PPE’s up-pipes are built from thick 11-gauge 304 stainless steel, giving you serious strength where it counts. Whether you're towing heavy loads or chasing horsepower gains, these pipes deliver 53 percent more flow to the turbo, which means quicker response and lower EGTs. You’ll notice the difference whether you’re on the highway, at the jobsite, or out at the track. And with a direct bolt-on design, you get the benefits without the hassle. This is a no-brainer upgrade for any LMM Duramax owner who expects more from their truck. Engineered To Eliminate Restrictions And Maximize Turbo Flow The PPE 116120710 High Flow Up-Pipes are purpose-built for 2007.5–2010 GM Silverado and Sierra 2500HD/3500HD models with the 6.6L Duramax LMM engine. These pipes are manufactured from robust 11-gauge 304 stainless steel, offering exceptional resistance to warping, fatigue, and cracking under extreme heat and pressure cycles. Unlike OEM up-pipes that tend to fail in high-demand conditions, PPE’s internally sleeved bellows are designed to flex without compromising integrity. The result is not only long-term durability but also a measurable increase in exhaust flow, up to 53 percent more than stock. This improvement reduces drive pressure, helps lower exhaust gas temperatures, and significantly boosts turbocharger performance. Designed as a direct replacement, the up-pipes bolt directly to factory exhaust manifolds for a seamless install with no custom fabrication required. Whether your truck is stock or modified, these up-pipes are an ideal solution for improving efficiency and protecting your powertrain under load. They’re built for drivers who rely on their Duramax to do serious work. Fits: 2007.5, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LMM Notes: - Designed specifically for 2007.5–2010 GM 6.6L Duramax LMM engines - Replaces OEM up-pipes that are prone to cracking over time - Provides 53 percent more exhaust flow than factory up-pipes - Constructed from durable 11-gauge 304 stainless steel - Internally sleeved bellows improve flexibility and durability - Direct bolt-on installation to factory exhaust manifolds - Improves turbo response and helps reduce EGTs - Recommended for both stock and tuned engine setups - Ideal for towing, performance, or long-term durability upgrades - No cutting or fabrication required during installation