Flowmaster

Flowmaster 818112 Outlaw Cat-Back Exhaust System

$1,049.95 USD

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10 in stock

Description & Features

Flowmaster 818112 Outlaw Cat-Back Exhaust System

This Flowmaster® Outlaw® Cat-back exhaust system for the 2020-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Maximum increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels
50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
Dual 4.00-inch polished stainless steel tips add a custom look
Includes complete hardware and factory styled hangers in the stock locations for an easy installation
Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow
Backed by Flowmaster’s Lifetime Limited Warranty
Can be configured to exit straight out the rear or out the side depending on preference

Specifications

Brand	Flowmaster
California Proposition 65	Yes
California Proposition 65 Chemical Name	Chromium (hexavalent compounds)
CARB (California) Compliant	Yes
Catalytic Converter Included	No
Catalytic Converter Quantity	0
Category	Exhaust
Clamping Type	Flat Band
Clamps Included	Yes
Emission Code	5
Exhaust Series	Outlaw
Exhaust Tip Color	Silver
Exhaust Tip Connection	Clamp-On
Exhaust Tip Cut	Angled
Exhaust Tip Diameter	4.00
Exhaust Tip Edge	Angle Cut
Exhaust Tip Finish	Polished
Exhaust Tip Intercooled	No
Exhaust Tip Length	13.00
Exhaust Tip Material	304 Stainless Steel
Exhaust Tip Quantity	2
Exhaust Tip Resonated	No
Exhaust Tip Shape	Round
Exhaust Tip Wall	Double Wall
Exit Style	Dual Out Rear
Finish	Natural
Gasket Or Seal Included	No
Grade Type	Performance
Hangers Included	Yes
Inlet Diameter	3.50
Inlet Type	Flanged
Main Piping Diameter	3.00
Mount Type	Uses Factory Hangers
Mounting Bracket Included	Yes
Muffler Body Height	4.00
Muffler Body Length	6.50
Muffler Body Material	409 Stainless Steel
Muffler Body Shape	Oval
Muffler Body Width	9.50
Muffler Color	Black
Muffler Finish	Black High-Temperature Paint Finish
Muffler Flanged Inlet	No
Muffler Flanged Outlet	No
Muffler Included	Yes
Muffler Inlet Connection	Slip-Fit
Muffler Inlet Inside Diameter	3.50
Muffler Inlet Location	Center
Muffler Inlet Outside Diameter	3.63
Muffler Outlet Connection	Slip-Fit
Muffler Outlet Diameter	3.00
Muffler Outlet Location	Dual
Muffler Outlet Quantity	2
Muffler Overall Length	12.375
Muffler Part Number	Kit Only
Muffler Quantity	1
Muffler Series	10 Series
Muffler Type	Chambered
part type	Exhaust System
Pipe Color	Silver
Pipe Material	409 Stainless Steel
Product Type	Exhaust System
Sound Level	Aggressive
Spring Bolt Kit Included	No
Sub Category	Exhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter	3.00
Tail Pipe Quantity	Dual
Tail Pipe Tapered Outlet	No
Tip Logo	Embossed
Type	Cat-Back
Valve Included	No
Valve Type	Not Applicable
Warning	California Proposition 65

Packaging Information

Weight: 51 lbs
Dimensions: 29.1 x 23.1 x 22.6 IN

Safety

⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information visit www.P65Warnings.ca.gov

Warranty

View Warranty (PDF)

Installation Instructions

View Installation Instructions (PDF)

⚠ Fitment Notes

Polished Tip Finish
Polished Tip Finish, FITS CREW CAB, 6.5-FOOT BED TRUCKS ONLY
Fits Crew Cab with 6.5-foot bed length, 159-inch wheelbase only. Will not fit models with 5th wheel tow hitch installed.