It has never been easier to upgrade your Silverado or Sierra and now is the perfect time to ditch that heavy, quiet stock exhaust system. Holley is pleased to introduce Hooker Blackheart's new cat-back exhaust system for the 2019-2020 (New Body) GM Silverado/Sierra. Designed to deliver a deep, sporty tone, there are options available for 5.3L and 6.2L applications. Constructed from 409SS to reduce weight and corrosion resistance, they feature a high flow straight through muffler that can produce up to a 16HP & 16 ft./lb. gain! Reducing weight by nearly 59% when compared with OE exhaust, they will offer great looks and lasting durability. This cat-back system utilizes the existing rear valance/exhaust tips, or allows you to upgrade to a side-exit 4" stainless tip (for factory single exhaust applications).