Flowmaster

Flowmaster 718155 Flow FX Direct Fit Muffler

$425.95 USD

Sale Sold out

Shipping calculated at checkout.

10 in stock

Description & Features

Flowmaster 718155 Flow FX Direct Fit Muffler

Flowmaster's® Flow FX Direct-Fit Muffler exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines gives you a great value packed way to help you customize your GM truck to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a 409 stainless steel Flow FX series "straight-through" muffler for great sound and maximum performance and no drone. The muffler then connects to the factory tailpipe for a simple and effective performance upgrade. Max dyno gains of 7 hp and 5 lb-ft at the rear wheels. This results in better acceleration and towing performance. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
A tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow with no drone
Max increases of up to 7 hp and 5 lb-ft over the stock exhaust at the wheels
Tuned performance muffler eliminates interior drone
Maintains factory warranty
Lifetime Limited Warranty

Specifications

Body Diameter	5
Body Height	5
Body Length	18
Body Material	409 Stainless Steel
Body Width	8
Brand	Flowmaster
California Proposition 65	Yes
California Proposition 65 Chemical Name	Nickel (Metallic)
California Proposition 65 Required	Yes
Catalytic Converter Included	No
Category	Exhaust
Clamping Type	Flat Band
Clamps Included	Yes
Color	Natural
Emission Code	5
Exhaust Series	Flow FX
Exhaust Tip Quantity	0
Exit Style	OEM
Finish	Natural
Gasket Or Seal Included	No
Grade Type	Performance
Heat Shield Attached	No
Heat Shield Included	No
Inlet Diameter	3.5
Inlet Inside Diameter	3.52
Inlet Location	Center
Inlet Outside Diameter	3.11
Inlet Quantity	1
Inlet Type	Slip-Fit
Main Piping Diameter	Center
Material	409 Stainless Steel
Mount Type	Uses Factory Hangers
Muffler Body Length	10
Muffler Body Material	409 Stainless Steel
Muffler Body Shape	Round
Muffler Body Width	8
Muffler Color	Natural
Muffler Finish	Natural
Muffler Inlet Location	Center
Muffler Material	409 Stainless Steel
Muffler Outlet Location	Center
Muffler Part Number	Kit Only
Muffler Quantity	1
Muffler Series	Flow FX
Muffler Shape	Oval
Muffler Type	Absorption
Outlet Diameter	3.5
Outlet Inside Diameter	3.52
Outlet Location	Center
Outlet Outside Diameter	3.65
Outlet Quantity	1
Outlet Type	Slip-Fit
Overall Length	34.25
part type	Exhaust Muffler Assembly
Pipe Material	409 Stainless Steel
Product Type	Exhaust System
Shape	Oval
Single Dual	Single
Sound Level	Aggressive / Moderate
Sub Category	Mufflers
System Type	Direct-fit Muffler
Tubing Diameter	3.5
Tubing Material	409 Stainless Steel
Type	Direct-fit Muffler
Type of Muffler	Absorption
Valve Actuator Included	No
Valve Included	No
Valve Type	Not Applicable
Vehicle Type	Truck/SUV
Warning	California Proposition 65

Packaging Information

Weight: 23.56 lbs
Dimensions: 45.8 x 15.25 x 9.2 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)