Flowmaster · New
Flowmaster 23-25 GM Colorado 2.7T American Thunder Cat-Back Exhaust System
MPN 818167 · Store SKU flo818167
Supplier stock checked 11/7/2026, 10:14:21 AM UTC. Adding a part does not reserve it.
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Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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 3.50-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 Flowmaster American Thunder Cat-Back Exhaust System
Manufacturer fitment & guides
Check 818167 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
