Guaranteed Free Delivery by 12/24! available on most items - Details

Talk to a Silverado Expert
Every day 8:30AM EST - 11:00PM EST
Win Any Intake & Exhaust Combo! Enter Now!

Flowmaster Outlaw Dual Exhaust System - Side/Rear Exit (14-18 5.3L Silverado 1500)

Market Price $1,022.99 You Save 12% ($118.35)
Our Price

$904.64 (kit)

FREE Shipping

  • Item S104238
  • MPN# 817689

Will this fit your Truck?

In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features, Video & Details

    • Aggressive Race-Level Sound
    • Significantly Improves Horsepower and Torque
    • Delta Flow™ Super 10 Series Welded Baffle Muffler
    • 3-in. Mandrel Bent Stainless Steel Tubing
    • 4-in. Black Ceramic Coated Exhaust Tips
    • Split Side Behind Rear Wheels or Dual Rear Exit
    • Bolt-On Installation
    • Designed for Double and Crew Cab Models
    • Not Compatible with 2WD Crew Cab Models with 2-Piece Driveshaft
    • Fits 2014 to 2018 Chevrolet Silverado 1500 5.3L Models

    Review & Installation Video

    Review & Install Video

    Race-Inspired Aggressive Sound. The Flowmaster Outlaw Cat-Back Exhaust is designed to deliver aggressive sound levels both internally and externally. This lets enthusiasts experience Flowmaster’s renowned sound while also enjoying their exhaust’s performance-boosting characteristics. Due to the sound levels emitted, this system is not intended for street driving. As a bonus, the exits can be configured as either split side or dual rear for flexible customization.

    High-Performance Exhaust. Flowmaster’s patented Delta Flow™ technology and the precision-machined mandrel-bent tubing dramatically improve scavenging and exhaust flow to improve your truck’s performance.  Each system is dyno-tuned for the best performance.

    High-Quality Materials and Construction. Like other Flowmaster products, the Outlaw is made from high-grade stainless steel and built to last. Additionally, the black ceramic coated tips add a rugged finished look to your truck.

    Direct Fit Replacement Upgrade. The Outlaw is precisely designed to fit your application and requires no additional fabrication. The installation utilizes the factory mounting point to simplify the process. And while not required, Flowmaster recommends welding the slip-fit connections for a more secure installation.

    Application. The Flowmaster Outlaw Cat-Back Exhaust with split side or rear exit is designed to fit Fits 2014 to 2017 Chevrolet Silverado 1500 5.3L models with either Double or Crew Cab. It’s not compatible with 2WD Crew Cab models with the 2-piece driveshaft.

    Fitment: 2014 2015 2016 2017 2018 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Inlet Pipe
    • (1) 6.5’ Bed Extension
    • (1) Muffler
    • (1) Tailpipe, Right
    • (1) Tailpipe, Left Front
    • (1) Tailpipe, Left Rear
    • (2) Side Exit Pipes (Right and Left)
    • (2) Rear Exit Pipes (Right and Left)
    • (2) Stainless Tips
    • Installation Hardware
    Installation Info
    Will it fit my Silverado?

    You Might Also Like

    Customer Photos

    Q & A

    No questions about this product yet.

    Ask the First Question

    Customer Reviews (2) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Afternoon

    • Loudness / Volume 5 5
    • Exhaust Note 5 5
    • Fit & Finish 5 5
    • Bang For Your Buck 4.5 4.5

    • 5/5

      Installation Time: Afternoon

      November 07, 2018

      Sounds really good

      If you have a neighbor that lives 20ft away and you wake up early in the morning for work. You may want to consider one with a bigger muffler. Not an obnoxiously loud in the cabin.


      Year: 2018 Submodel: LT Engine: 5.3L V8

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      September 26, 2018

      Awesome kit!

      Got the kit installed and sounds great! Gave me a about 3mpg gaines when paird with a CAI


      Year: 2017 Engine: 5.3L V8

      Helpful (5)