Description
Overview
The Flowmaster® American Thunder® cat-back exhaust system is engineered specifically for the 2023-2026 Chevrolet Colorado and GMC Canyon equipped with the 2.7-liter turbo engine. Built to unlock more of your truck’s potential, this complete exhaust system replaces the restrictive factory piping with a purpose-designed performance exhaust that improves flow, adds power, and delivers a bolder tone. If you’ve been searching for a catback exhaust that combines proven performance with a straightforward home install, this Flowmaster kit is built for the job.
Manufactured from durable 409 stainless steel tubing, this system uses 3.00-inch to dual 2.50-inch mandrel-bent pipes for smoother exhaust gas flow. The 50 Series Big Block muffler is tuned for an aggressive-to-moderate sound level and maximum performance, so you get a serious voice without unwanted drone. On the dyno, this exhaust system produced maximum increases of 13 horsepower and 15 lb-ft of torque at the rear wheels.
Style & Sound
The system exits out the rear or side of the truck and finishes with dual 3.5-inch polished stainless steel tips featuring an embossed logo for a clean, factory-plus look. The silver pipes and black muffler give the whole car exhaust setup a purposeful, high-quality appearance under the truck, while the polished tips add the visual pop that shows off the upgrade.
Key Benefits
- Verified dyno gains of up to 13 hp and 15 lb-ft at the rear wheels
- Durable 409 stainless steel tubing for long-term corrosion resistance
- 3.00-inch to dual 2.50-inch mandrel-bent exhaust pipe for improved gas flow
- 50 Series Big Block muffler delivering an aggressive-to-moderate tone
- Dual 3.5-inch polished stainless tips with embossed logo
- Rear or side exit options to suit your truck
Easy Installation
Designed as a true bolt-on, this Flowmaster exhaust uses all existing factory hanger locations, so there’s no cutting or fabrication required. The kit includes installation instructions and all necessary hardware, making this a driveway-friendly upgrade you can complete at home. Whether you’re comparing a borla exhaust or corsa exhaust, or shopping magnaflow exhaust and walker exhaust options, this American Thunder system offers a complete, engineered solution rather than piecing together individual exhaust exhaust pipe components.
Fitment & Compliance
This exhaust system kit fits the 2023-2026 GM Colorado/Canyon with the 2.7-liter turbo engine. It is CARB (California) compliant, carries a California Proposition 65 warning, and includes a dual tail pipe design with a center inlet muffler measuring 28.36 inches overall with a 2.50-inch dual outlet. The complete system is backed by Flowmaster’s Lifetime Limited Warranty. When you shop for exhaust upgrades for your Colorado or Canyon 2.7T, this performance exhaust delivers power, sound, and style in one package.















