The Dynaflex Peterbilt T4 389 2011 and Newer RP Exhaust Kit is a high-quality product designed to enhance the performance and appearance of your truck. With different options for top stacks and a variety of included components, this kit allows you to customize your exhaust system to your preferences. Made in the USA and featuring show-quality chrome, this kit is not only practical but also visually appealing. Additionally, the SCR systems included in this kit help reduce greenhouse gas emissions, making it an environmentally friendly choice. Fits most Peterbilt 389s from 2011 to 2015. Comes with a 1-year warranty.

7 Inch Pickett Peterbilt Unitbilt T4 389 2011-2015 Step Move RP Exhaust Kit with Different Options for Top Stacks.
Details / Specifications
- Choose Your Top Stacks Length To Complete your Kit
- Also Available In
  - Toro Loco, Tech Nine, Straight, Ozzie Curve, Mitered, Eagle Claw, Chino, Bull Hauler or Curve
- Kit Includes
  - DF-14PB-RP6881CP : Big Chrome Frame Bracket Rod Pickett Left Elbow - Quantity 1
  - DF-14PB-RP6879CP : Big Chrome Frame Bracket Rod Pickett Right Elbow - Quantity 1
  - DF-14ZPB-RP68817050CP : 389 Left Flange Pickett 90 Degree Elbow - Quantity 1
  - DF-14ZPB-RP68797050CP : 389 Right Pickett 90 Degree Elbow - Quantity 1
  - DF-24ZXX-70062CP : 62 Inch 2X Series Spool Clamp to Clamp - Quantity 2
  - DF-50BJ-RP700SCP : 50 Series 389 Chrome Support - Quantity 4
  - DF-50BJ-1217700SCP : 50 Series 389 Unibilt Slider Clamp - Quantity 1
  - DF-50BJ-1317700SCP : 50 Series 389 Unibilt Slider Clamp - Quantity 1
  - DF-14PB-RP6882S09 : Short DPF Inlet Elbow (304 SS) - Quantity 1
  - DF-14PB-FB38913B : DPF Selective Catalytic Reduction (SCR) Step Move Bracket (No Drilling) - Quantity 1
  - DF-53-500-18 : 302 Stainless Steel 53 Series 5 Inch Diameter18 Inch Length Flexible Metal Hose - Quantity 1
  - DF-50TQ-500S : Lap Joint Clamp - Quantity 2
  - DF-77CUM : 5 Inch Marmon Gasket - Quantity 2
  - DF-14PAC-B6001009 : PACCAR Slider Bushing Kit - Quantity 2
- OEM Number : M66-6881-3220 or M66-6879-3220
- Flex Pipe Kits:
  - 1 Stainless Steel 24" Flex Section
  - 1 Stainless Steel 18" Flex Section
  - 4 Stainless Steel Lap Joint Exhaust Clamps.
  - If Other Lengths of Flex is Needed Contact Big Rig Chrome Shop
Features
- Sold as a Kit
- SCR Systems will Help to Reduce Greenhouse Gas Emissions
- Made in the USA
- Show Quality Chrome Product
- Freight Ground Shipping $175.00 Commercial $225.00 Residential (Continental USA Only)
Fits Truck Model and/or OEM Replacement Numbers
- Fits Most Peterbilt 389s 2011 to 2015
Manufacturer and Warranty
- Dynaflex
- 1 Year Warranty