Flowmaster 23-25 GM Colorado 2.7T American Thunder Cat-Back Exhaust System

This Flowmaster® American Thunder® cat-back exhaust system is for the 2023-2026 GM Colorado/Canyon with the 2.7-liter turbo engine. This system is manufactured using durable 409 stainless steel tubing and features 3.00-inch to dual 2.50-inch mandrel bent pipes for better exhaust gas flow. A 50 Series Big Block muffler is used for an aggressive to moderate sound level and maximum performance. Maximum increases on the dyno revealed 13 hp and 15 lb-ft at the rear wheels. This system exits out the rear or side of the truck with dual 3.5-inch polished stainless steel tips for added style. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty. Fits 2023-2026 GM Colorado / Canyon 2.7-Liter, Cat-Back, Dual Out Same Side Exit, Stainless Steel Exhaust System

• 3.00-inch to dual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
• 50 Series Big Block performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
• Includes complete hardware and factory styled hangers in the stock locations for an easy installation
• Includes both dual out rear and side exit pipes so you can choose the look that suits you best
• Max increases of up to 13 hp and 15 lb-ft over the stock exhaust at the wheels
• Dual 3.50-inch polished stainless steel tips add a custom look to the truck
• Lifetime Limited Warranty

Upgrade the sound, performance, and appearance of your 2023-2026 Chevrolet Colorado or GMC Canyon equipped with the 2.7-liter turbo engine using the Flowmaster American Thunder cat-back exhaust system, part 818167. Designed for a dual-out, same-side exit configuration, this complete exhaust system replaces the factory exhaust behind the catalytic converter and supports improved exhaust gas flow while delivering Flowmaster’s distinctive performance tone.
Constructed from durable 409 stainless steel, the system uses 3.00-inch tubing that transitions to dual 2.50-inch mandrel-bent pipes. The 50 Series Big Block muffler produces a deep, aggressive-to-moderate sound level that is suitable for performance-oriented street trucks. Dyno testing recorded maximum gains of up to 13 horsepower and 15 lb-ft of torque at the rear wheels compared with the factory exhaust, helping your Colorado or Canyon perform with greater authority.
The system includes both rear-exit and side-exit pipes, allowing you to select the appearance that best suits your truck. Dual 3.50-inch polished stainless steel tips provide a clean, custom finish, while factory-style hangers use the original mounting locations for a straightforward installation. All required hardware and installation instructions are included, making this system suitable for a properly equipped home installation. Flowmaster backs the American Thunder system with a Lifetime Limited Warranty.

Features:

• 3.00-inch to dual 2.50-inch mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and durability

• 50 Series Big Block performance muffler delivers a deep, aggressive-to-moderate performance tone

• Designed for 2023-2026 Chevrolet Colorado and GMC Canyon models with the 2.7-liter turbo engine

• Includes rear-exit and side-exit pipes for selectable exhaust outlet styling

• Dual 3.50-inch polished stainless steel tips provide a custom appearance

• Uses factory-style hangers in the original mounting locations for easier installation

• Includes complete installation hardware and instructions

• Dyno-tested gains of up to 13 horsepower and 15 lb-ft of torque at the rear wheels

• Covered by Flowmaster’s Lifetime Limited Warranty

Fitment:
Chevrolet Colorado LT 2023
Chevrolet Colorado LT 2024
Chevrolet Colorado LT 2025
Chevrolet Colorado LT 2026
Chevrolet Colorado Trail Boss 2023
Chevrolet Colorado Trail Boss 2024
Chevrolet Colorado Trail Boss 2025
Chevrolet Colorado Trail Boss 2026
Chevrolet Colorado WT 2023
Chevrolet Colorado WT 2024
Chevrolet Colorado WT 2025
Chevrolet Colorado WT 2026
Chevrolet Colorado Z71 2023
Chevrolet Colorado Z71 2024
Chevrolet Colorado Z71 2025
Chevrolet Colorado Z71 2026
Chevrolet Colorado ZR2 2023
Chevrolet Colorado ZR2 2024
Chevrolet Colorado ZR2 2025
Chevrolet Colorado ZR2 2026
GMC Canyon AT4 2023
GMC Canyon AT4 2024
GMC Canyon AT4 2025
GMC Canyon AT4 2026
GMC Canyon AT4X 2023
GMC Canyon AT4X 2024
GMC Canyon AT4X 2026
GMC Canyon Denali 2023
GMC Canyon Denali 2024
GMC Canyon Denali 2025
GMC Canyon Denali 2026
GMC Canyon Elevation 2023
GMC Canyon Elevation 2024
GMC Canyon Elevation 2025
GMC Canyon Elevation 2026