Description
Overview
The Flowmaster Signature Series Cat-back Exhaust System is engineered specifically for 2019*–2026 GM Silverado/Sierra 1500 trucks (*new body style) equipped with the 5.3L engine and factory dual exhaust. Built as a true bolt-on catback exhaust, it transforms the sound and performance of your truck while retaining the clean, factory dual-exit appearance. If you’ve been shopping for an exhaust system that combines proven Flowmaster tuning with premium construction, this Signature Series kit delivers a deep, moderately aggressive tone and real, measurable gains.
Every part of this exhaust system is manufactured from premium brushed 304 stainless steel, giving it a bright silver finish that resists corrosion and looks as good as it sounds. A 3.00-inch inlet pipe feeds a single inlet / dual outlet Signature Series straight-through muffler, engineered to free up airflow for maximum performance. Flowmaster backs the design with dyno-verified maximum gains of 21 horsepower and 26 lb.-ft. of torque at the rear wheels.
Key Benefits
This performance exhaust is TIG welded for stronger, more precise joints that add durability and a refined, quality appearance throughout. The dual 2.50-inch mandrel-bent tailpipes are custom routed to clear the factory spare tire and tow hitch with no clearance issues, then exit through the factory exhaust bezels in the bumper to preserve the OE dual-exhaust look.
- Premium brushed 304 stainless steel construction in a silver finish
- 3.00-inch inlet pipe into a single inlet / dual outlet Signature Series straight-through muffler
- Dual 2.50-inch mandrel-bent tailpipes routed to clear the spare tire and tow hitch
- TIG-welded seams for strength, precision, and appearance
- Max dyno gains of 21 hp and 26 lb.-ft. at the rear wheels
- CARB (California) compliant — Emission Code 5
- Muffler included; exhaust tips sold separately
Sound & Performance
The straight-through Signature Series muffler produces an aggressive yet moderate sound level — deep and confident under acceleration without droning on the highway. Whether you’re comparing it against a Borla exhaust, Corsa exhaust, MagnaFlow exhaust, or Walker exhaust, this Flowmaster catback exhaust brings signature tuning and a genuine performance exhaust bark to your Silverado or Sierra.
Installation & Fitment
This bolt-on car exhaust utilizes the factory hanger locations and includes installation instructions plus all necessary hardware for a straightforward at-home installation. It fits both 2WD and 4WD models. Note the exhaust exhaust pipe kit exits through the factory bumper bezels, so your truck keeps its OEM dual-tip look.
Choose this Signature Series cat-back to upgrade your GM 1500 with an exhaust pipe system that balances sound, durability, and dyno-proven power. This product carries a California Proposition 65 warning.
