Description
Overview
The Flowmaster Outlaw Cat-back Exhaust System is custom designed for 2014-2019* GM Silverado and Sierra 1500 trucks (*Classic body) equipped with the 4.3L or 5.3L engine. Built for drivers who want an unmistakably aggressive presence, this bolt-on system delivers bold interior and exterior sound levels along with the performance benefits you expect from the Outlaw series. It’s engineered for Crew Cab and Double Cab models and arrives complete with all necessary parts and hardware for a straightforward installation.
Sound & Performance
At the heart of the system is a Super 10 Series muffler, chosen to produce a deep, hard-hitting tone that lets your Silverado or Sierra announce itself. Stainless steel mandrel bent tubing flows into the muffler and exits through dual 3.00-inch stainless steel mandrel bent tailpipes, maintaining smooth, unrestricted flow from front to back. The result is an aggressive sound level paired with the free-flowing performance character Flowmaster is known for.
Choose Your Exit
This cat-back setup gives you a choice of tailpipe exits to match your truck and your style. Opt for dual out the rear under the bumper, or dual out the sides behind the rear tires. Whichever exit you prefer, the system is finished with a pair of large 4.00-inch black ceramic coated stainless steel tips featuring an embossed Flowmaster logo for a clean, purposeful look.
Key Highlights
- Custom designed for 2014-2019 GM Silverado/Sierra 1500 (Classic body) with the 4.3L or 5.3L engine
- Fits Crew Cab and Double Cab models
- Super 10 Series muffler included for an aggressive tone
- Stainless steel mandrel bent tubing with dual 3.00-inch mandrel bent tailpipes
- Large 4.00-inch black ceramic coated stainless steel tips with embossed logo
- Your choice of dual rear (under bumper) or dual side (behind rear tires) exit
Fitment & Installation
Designed for an easy fit, the system uses the factory hanger locations, so it bolts on with flanged connections and includes all the hardware needed to get the job done. The 3.00-inch inlet diameter and dual tailpipe configuration keep flow consistent throughout, while the silver stainless tubing and black ceramic tips deliver a finished, factory-plus appearance.
Compliance & Warranty
This is an emissions-legal, CARB (California) compliant system carrying emission code 5, making it a smart choice for owners who want serious sound and performance without compromising legality. The exhaust system is backed by Flowmaster’s Lifetime Limited Warranty. Note: California Proposition 65 warning applies. A heat shield is not included with this system.
