Flowmaster 817706 Outlaw Extreme Cat-Back Exhaust Kit Instruction Manual

1. Product Overview

The Flowmaster 817706 Outlaw Extreme Cat-Back Exhaust Kit is designed to enhance the exhaust system of compatible 2009-2013 Chevy Silverado and GMC Sierra 1500 trucks equipped with a 5.3L engine and 143.5 or 157.5 inch wheelbases. This kit features a 3-inch 409 stainless steel construction with a black dump turn down design, engineered for durability and performance.

Key features include:

• Extreme Sound: Engineered for an aggressive exhaust note.
• Stainless Steel Construction: Provides durability and corrosion resistance.
• Race Proven Outlaw Muffler Technology: Incorporates advanced muffler design for optimal performance.

2. What's in the Box

The Flowmaster 817706 Outlaw Extreme Cat-Back Exhaust Kit typically includes the following components:

• Mufflers
• Piping (various sections)
• Clamps
• Hangers
• Installation hardware

Figure 2.1: Included components of the Flowmaster 817706 exhaust kit.

3. Setup and Installation

Installation of the Flowmaster 817706 Outlaw Extreme Cat-Back Exhaust Kit is designed to be a direct-fit replacement for the factory exhaust system. It utilizes existing factory hangers and includes stainless clamps for a secure, weld-free assembly. Professional installation is recommended for optimal fitment and performance.

3.1 Pre-Installation Checks

1. Verify all components listed in Section 2 are present and undamaged.
2. Ensure the vehicle is cool and safely supported on a lift or jack stands.
3. Review the vehicle's factory service manual for specific exhaust removal procedures.

3.2 Removal of Factory Exhaust

• Locate and loosen all clamps and hangers securing the factory exhaust system from the catalytic converter back.
• Carefully remove the factory muffler and tailpipe sections. Note that some cutting of the original pipe may be required depending on the vehicle's current exhaust configuration.

3.3 Installation of Flowmaster Kit

• Begin by installing the new muffler assembly, ensuring it aligns with the factory mounting points.
• Attach the intermediate pipe(s) and then the tailpipe section(s), loosely securing all clamps.
• Adjust the entire system for proper alignment and clearance with the vehicle's undercarriage.
• Once aligned, progressively tighten all clamps to secure the system.

Figure 3.1: Main muffler and tailpipe section of the Flowmaster 817706 kit.

Figure 3.2: Exhaust pipe section with integrated hanger for easy installation.

Figure 3.3: Curved exhaust pipe section ensuring proper fitment around vehicle components.

3.4 Manufacturing Process Insights

The following videos provide insight into the manufacturing processes that contribute to the quality and durability of exhaust systems, including pipe bending and polishing techniques.

4. Operating Characteristics

The Flowmaster Outlaw Extreme series is known for its aggressive exterior sound level. Users can expect a noticeable increase in exhaust volume and a deep, throaty tone, particularly under acceleration. While designed for an extreme sound, the system aims to minimize drone during cruising speeds.

Figure 4.1: Visual representation of the aggressive exterior sound level produced by the Outlaw Extreme series.

4.1 Sound Demonstration

The following video provides an audio demonstration of the Flowmaster 817706 exhaust system on a compatible vehicle, showcasing its sound profile.

4.2 General Product Overview

This video offers a general overview of Flowmaster products and their performance characteristics.

5. Maintenance

To ensure the longevity and optimal performance of your Flowmaster exhaust system, regular maintenance is recommended:

• Regular Inspection: Periodically check all clamps, hangers, and pipe connections for tightness and signs of wear or damage.
• Cleaning: Clean the exhaust tips and visible sections of the piping with a mild automotive cleaner and a soft cloth to maintain their appearance. Avoid abrasive cleaners that can scratch the finish.
• Corrosion Check: Although made from stainless steel, inspect for any signs of surface corrosion, especially in areas exposed to road salt or harsh chemicals.
• Heat Shields: Ensure all heat shields are intact and properly secured to prevent heat damage to surrounding components.

6. Troubleshooting

If you encounter any issues with your Flowmaster exhaust system, consider the following troubleshooting steps:

• Excessive Noise/Rattling:
  • Check all clamps and connections for tightness. Loose connections can cause rattles or leaks.
  • Inspect hangers for damage or improper seating. Ensure the exhaust system has adequate clearance from the vehicle's frame and other components.
• Exhaust Leaks:
  • Listen for hissing sounds, especially when the engine is cold.
  • Visually inspect all joints and welds for cracks or gaps. Tighten clamps or consult a professional for repairs.
• Unusual Vibrations:
  • Ensure the exhaust system is not contacting any part of the vehicle's chassis or suspension. Adjust hangers or pipe routing as needed.
  • Verify that the muffler and pipes are correctly oriented and not twisted.

If troubleshooting steps do not resolve the issue, contact Flowmaster customer support or a certified automotive technician.

7. Specifications

8. Warranty and Support

All Flowmaster stainless steel products, including this Outlaw Extreme Cat-Back Exhaust Kit, carry a Limited Lifetime Warranty. For specific warranty terms, claims, or technical support, please refer to the official Flowmaster website or contact their customer service department directly.