Peterbilt 579 AK Lite 8" Dynaflex Chrome Exhaust Kit *Only Fits 2018 & Newer Trucks Avoid heat shields, baked on bugs, and slurry by transforming the look of your Peterbilt with this custom fit kit! Patented Air Kooled technology helps prevent heat from getting in your chrome. Premier Quality Stacks With A Look That Is Unmatched! AK Lite 8" Dynaflex Exhaust Kit Fits Most Peterbilt 579 Models (2018 & Newer) Kit Application: Unibilt/Daycab Body And Overframe AK Lite Elbow Stacks Available In 36", 44", 48", 54", 60", Or 68" Length (Choose Option Above) Available With Flat Top, Mitered, Dynaflex Curve, Or Ozzie Curve Top Stacks (Choose Option Above) All-In-One Stacks and Heat Shield Sold As A Kit Quality American Made Product Need Help Selecting Your Stack Length? View Dynaflex Top Stack Height Chart *This product ships LTL Freight and the shipping quotes are based on commercial addresses only. If you need a quote to have this delivered to a residential address or farm, please call us so we can provide you with an accurate shipping price. Failing to provide a commercial address could result in delays with processing your order. Please refer to our Shipping Info section at the bottom of our website for more information.