1999-14 GMC Sierra with 4.8L, 5.3L, 6.0L, 6.2L V8 engines.
ACAT Performance’s GMC Sierra universal herringbone metallic catalytic converter surpasses all other universal catalytic converters on the market in performance, design, and longevity. Each ACAT GMC Sierra universal herringbone metallic catalytic converter body is manufactured from a single CNC-formed laser-welded stainless steel tubular section that is spun around ACAT’s Proprietary Herringbone Metallic Monolith. The ACAT Performance GMC Sierra universal herringbone metallic catalytic converter exterior shell is cooled by -300℉ to -400℉ with 3M™ Interam® 1600HTE Series Non-Intumescent Mat Mount Material.
ACAT Performance’s GMC Sierra herringbone metallic catalytic converter will deliver dyno-proven increases in both horsepower and torque. Benefits include increased miles per gallon, lower emissions, and more rugged durability in a smaller and lighter configuration.
Note: All Federal catalytic converters meet EPA requirements. Federal Catalytic Converters are not legal for sale, installation or use with licensed vehicles in the state of California or any other states that have adopted California Air Resource Board (CARB) Emissions Requirements.
Important: ACATs Universal Catalytic Converters are as pictured. If you need a different configuration, we have you covered. Please contact us and one of our friendly customer service agents will be happy to help.