Flowmaster

Flowmaster 817895 American Thunder Cat-back Exhaust System

$1,199.95 USD

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10 in stock

Description & Features

Flowmaster 817895 American Thunder Cat-back Exhaust System

This Flowmaster® American Thunder® cat-back exhaust system for the 2019-2026 GM 1500 (new body style) trucks with 5.3L engine is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and the performance benefits you would expect from Flowmaster. This emissions-legal bolt-on system fits all Crew Cab and Double Cab models with 5.5 and 6.5-ft long beds with factory dual exhaust option. Features include flex joint, mandrel-bent 3.00-inch stainless steel tubing flowing into a Super 40® Series muffler, dual 2.50-inch mandrel-bent stainless tailpipes that are finished off with quad 4.00-inch black ceramic coated stainless steel tips exiting out under the factory exhaust bezels. Designed for an easy fit, this system includes all necessary parts and hardware for an easy at home installation. Maximum dyno gains of 15 hp and 19 lb.ft. at the rear wheels. Notes: Fits 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 5.3L engine. Fits models with 5.5 and 6.5-ft long beds with factory dual exhaust option.

Large 4.00-inch Black Ceramic Coated Stainless Quad Tips
Max Dyno Gains of 15 hp and 19 lb.ft. of Torque
Moderate Interior with Aggressive Exterior Tone
Uses the Factory Hanger Locations
Large Volume Super 40 Muffler
Stainless Steel Construction
Lifetime Limited Warranty
Easy Installation

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	American Thunder
Exhaust Tip Color	Black
Exhaust Tip Connection	Welded
Exhaust Tip Cut	Angled
Exhaust Tip Diameter	4.00
Exhaust Tip Edge	Angle Cut
Exhaust Tip Finish	Black Ceramic Coating
Exhaust Tip Intercooled	No
Exhaust Tip Length	7.50
Exhaust Tip Material	304 Stainless Steel
Exhaust Tip Quantity	4
Exhaust Tip Resonated	No
Exhaust Tip Shape	Round
Exhaust Tip Wall	Single Wall
Exit Style	Dual Out Rear
Finish	Natural
Gasket Or Seal Included	No
Grade Type	Performance
Hangers Included	Yes
Inlet Type	Clamp-On
Main Piping Diameter	2.50
Mount Type	Uses Factory Hangers
Mounting Bracket Included	No
Muffler Body Height	5.00
Muffler Body Length	13.50
Muffler Body Material	409 Stainless Steel
Muffler Body Shape	Oval
Muffler Body Width	10.00
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	3.00
Muffler Inlet Outside Diameter	3.13
Muffler Outlet Connection	Slip-Fit
Muffler Outlet Quantity	2
Muffler Quantity	1
Muffler Series	Super 40 Series
Muffler Type	Chambered
part type	Exhaust System
Pipe Color	Silver
Pipe Material	409 Stainless Steel
Product Type	Exhaust System
Sound Level	Aggressive / Moderate
Spring Bolt Kit Included	No
Sub Category	Exhaust and Tail Pipes
Tail Pipe Outlet Outside Diameter	2.50
Tail Pipe Quantity	2
Tail Pipe Tapered Outlet	No
Type	Cat-Back
Valve Included	No
Valve Type	Not Applicable
Warning	California Proposition 65

Packaging Information

Weight: 55.9 lbs
Dimensions: 62.75 x 18.5 x 14.5 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

Does not fit trucks with factory single exhaust
Does Not fit 2019 LD/classic body style or trucks with factory single exhaust system. Does not fit models with the Multimatic suspension option.