Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System - Quad Tips

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. Fits 2019-2026 (New body) Chevrolet Silverado 1500/GMC Sierra 1500 with 5.3L engine. - Aggressive to moderate sound Does Not fit 2019 LD/classic body style or trucks with factory single exhaust system. Does not fit models with the Multimatic suspension 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

Upgrade the sound and performance of your 2019-2026 Chevrolet Silverado 1500 or GMC Sierra 1500 with the Flowmaster American Thunder cat-back exhaust system, Part Number 817895. Designed for new-body-style trucks equipped with the 5.3L engine, this emissions-legal bolt-on system delivers an aggressive exterior tone with a moderate interior sound level. It is compatible with Crew Cab and Double Cab models featuring factory dual exhaust and either a 5.5-foot or 6.5-foot bed.
Constructed from durable stainless steel, the system uses a flexible joint and mandrel-bent 3.00-inch tubing flowing into a large-volume Super 40 Series muffler. Dual 2.50-inch mandrel-bent stainless steel tailpipes route through the factory exhaust bezels and are finished with quad 4.00-inch black ceramic-coated stainless steel tips. The system is engineered to use factory hanger locations for a straightforward installation and includes the necessary components and hardware for an at-home install.
Performance testing recorded maximum gains of up to 15 horsepower and 19 lb.-ft. of torque at the rear wheels. The Flowmaster American Thunder system provides the performance benefits, fit, and durability expected from a premium truck exhaust upgrade, backed by a lifetime limited warranty. It does not fit 2019 LD or classic-body-style trucks, models with a factory single-exhaust system, or trucks equipped with the Multimatic suspension option.

Features:

• Fits 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 new-body-style trucks with the 5.3L engine

• Compatible with Crew Cab and Double Cab models with factory dual exhaust

• Fits trucks with 5.5-foot or 6.5-foot beds

• Aggressive exterior tone with a moderate interior sound level

• Maximum dyno gains of up to 15 horsepower and 19 lb.-ft. of torque

• Mandrel-bent 3.00-inch stainless steel tubing

• Dual 2.50-inch stainless steel tailpipes

• Large-volume Flowmaster Super 40 Series muffler

• Quad 4.00-inch black ceramic-coated stainless steel exhaust tips

• Uses factory hanger locations for simplified installation

• Stainless steel construction

• Includes installation hardware and necessary components

• Lifetime limited warranty

• Does not fit 2019 LD or classic-body-style trucks, factory single-exhaust models, or trucks with Multimatic suspension

Fitment:
Chevrolet Silverado 1500 Custom 2019
Chevrolet Silverado 1500 Custom 2020
Chevrolet Silverado 1500 Custom 2021
Chevrolet Silverado 1500 Custom Trail Boss 2019
Chevrolet Silverado 1500 Custom Trail Boss 2020
Chevrolet Silverado 1500 Custom Trail Boss 2021
Chevrolet Silverado 1500 Custom Trail Boss 2022
Chevrolet Silverado 1500 Custom Trail Boss 2023
Chevrolet Silverado 1500 Custom Trail Boss 2024
Chevrolet Silverado 1500 Custom Trail Boss 2025
Chevrolet Silverado 1500 Custom Trail Boss 2026
Chevrolet Silverado 1500 High Country 2019
Chevrolet Silverado 1500 High Country 2020
Chevrolet Silverado 1500 High Country 2021
Chevrolet Silverado 1500 High Country 2022
Chevrolet Silverado 1500 High Country 2023
Chevrolet Silverado 1500 High Country 2024
Chevrolet Silverado 1500 High Country 2025
Chevrolet Silverado 1500 High Country 2026
Chevrolet Silverado 1500 LT 2019
Chevrolet Silverado 1500 LT 2020
Chevrolet Silverado 1500 LT 2021
Chevrolet Silverado 1500 LT 2022
Chevrolet Silverado 1500 LT 2023
Chevrolet Silverado 1500 LT 2024
Chevrolet Silverado 1500 LT 2025
Chevrolet Silverado 1500 LT 2026
Chevrolet Silverado 1500 LT Trail Boss 2019
Chevrolet Silverado 1500 LT Trail Boss 2020
Chevrolet Silverado 1500 LT Trail Boss 2021
Chevrolet Silverado 1500 LT Trail Boss 2022
Chevrolet Silverado 1500 LT Trail Boss 2023
Chevrolet Silverado 1500 LT Trail Boss 2024
Chevrolet Silverado 1500 LT Trail Boss 2025
Chevrolet Silverado 1500 LT Trail Boss 2026
Chevrolet Silverado 1500 LTZ 2019
Chevrolet Silverado 1500 LTZ 2020
Chevrolet Silverado 1500 LTZ 2021
Chevrolet Silverado 1500 LTZ 2022
Chevrolet Silverado 1500 LTZ 2023
Chevrolet Silverado 1500 LTZ 2024
Chevrolet Silverado 1500 LTZ 2025
Chevrolet Silverado 1500 LTZ 2026
Chevrolet Silverado 1500 PPV 2023
Chevrolet Silverado 1500 PPV 2024
Chevrolet Silverado 1500 PPV 2025
Chevrolet Silverado 1500 PPV 2026
Chevrolet Silverado 1500 RST 2019
Chevrolet Silverado 1500 RST 2020
Chevrolet Silverado 1500 RST 2021
Chevrolet Silverado 1500 RST 2022
Chevrolet Silverado 1500 RST 2023
Chevrolet Silverado 1500 RST 2024
Chevrolet Silverado 1500 RST 2025
Chevrolet Silverado 1500 RST 2026
Chevrolet Silverado 1500 SSV 2019
Chevrolet Silverado 1500 SSV 2020
Chevrolet Silverado 1500 SSV 2021
Chevrolet Silverado 1500 LTD High Country 2022
Chevrolet Silverado 1500 LTD LT 2022
Chevrolet Silverado 1500 LTD LT Trail Boss 2022
Chevrolet Silverado 1500 LTD LTZ 2022
Chevrolet Silverado 1500 LTD RST 2022
Chevrolet Silverado 1500 LTD SSV 2022
GMC Sierra 1500 AT4 2019
GMC Sierra 1500 AT4 2020
GMC Sierra 1500 AT4 2021
GMC Sierra 1500 Base 2019
GMC Sierra 1500 Base 2020
GMC Sierra 1500 Base 2021
GMC Sierra 1500 Denali 2019
GMC Sierra 1500 Denali 2020
GMC Sierra 1500 Denali 2021
GMC Sierra 1500 Denali 2022
GMC Sierra 1500 Denali 2023
GMC Sierra 1500 Denali 2024
GMC Sierra 1500 Denali 2025
GMC Sierra 1500 Denali 2026
GMC Sierra 1500 Elevation 2019
GMC Sierra 1500 Elevation 2020
GMC Sierra 1500 Elevation 2021
GMC Sierra 1500 Elevation 2022
GMC Sierra 1500 Elevation 2023
GMC Sierra 1500 Elevation 2024
GMC Sierra 1500 Elevation 2025
GMC Sierra 1500 Elevation 2026
GMC Sierra 1500 Pro 2022
GMC Sierra 1500 Pro 2023
GMC Sierra 1500 Pro 2024
GMC Sierra 1500 Pro 2025
GMC Sierra 1500 Pro 2026
GMC Sierra 1500 SLE 2019
GMC Sierra 1500 SLE 2020
GMC Sierra 1500 SLE 2021
GMC Sierra 1500 SLE 2022
GMC Sierra 1500 SLE 2023
GMC Sierra 1500 SLE 2024
GMC Sierra 1500 SLE 2025
GMC Sierra 1500 SLE 2026
GMC Sierra 1500 SLT 2019
GMC Sierra 1500 SLT 2020
GMC Sierra 1500 SLT 2021
GMC Sierra 1500 SLT 2022
GMC Sierra 1500 SLT 2023
GMC Sierra 1500 SLT 2024
GMC Sierra 1500 SLT 2025
GMC Sierra 1500 SLT 2026
GMC Sierra 1500 Limited Denali 2022
GMC Sierra 1500 Limited Elevation 2022
GMC Sierra 1500 Limited Pro 2022
GMC Sierra 1500 Limited SLE 2022
GMC Sierra 1500 Limited SLT 2022