Gibson 65586 Cat-Back Dual Split Exhaust – 2015-2022 Chevrolet Colorado / GMC Canyon 2.5L / 3.6L – Polished Stainless Tips

SKU: 65586 / UPC: 677418028034

Gibson Cat-Back Exhaust 2015-2022 Colorado Canyon

Gibson 65586 is the cat-back dual split exhaust built for the 2015–2022 Chevrolet Colorado and 2015–2022 GMC Canyon with the 2.5L or 3.6L engine. Mandrel-bent 2.25-inch 409 stainless steel tubing routes exhaust gases with maximum efficiency, exiting straight out the back through a pair of 4-inch polished T-304 stainless rolled angle-cut tips. Part number 65586 fits Crew Cab Long Bed, Crew Cab Short Bed, and Extended Cab Long Bed configurations on both the Colorado and the Canyon and is compatible with most factory bumpers, roll pans, and trailer hitches.

Dyno-proven on the 2.5L and 3.6L engines, the Gibson 65586 delivers 10–15 horsepower and 15–20 lb-ft of torque in the 1,800–3,000 RPM range where you actually feel it. That means stronger acceleration merging onto the highway, improved throttle response while towing, and a noticeably more connected feel underfoot. Made in the USA and backed by Gibson's Lifetime Limited Warranty, part 65586 is one of the most complete bolt-on performance upgrades available for the mid-size Colorado/Canyon platform.

Why Gibson 65586 for Your Colorado or Canyon?

• Dyno-proven gains: 10–15 HP and 15–20 lb-ft of torque (1,800–3,000 RPM) on both the 2.5L and 3.6L engines
• Gibson Superflow Muffler: baffled and chambered design, no internal packing, delivers a deep aggressive tone while keeping interior drone to a minimum
• 2.25-inch mandrel-bent 409 stainless steel tubing: smooth, consistent bends maintain full bore flow throughout the system
• Dual 4-inch T-304 polished stainless rolled angle-cut tips: clamp-on design, 12-inch length, 2.25-inch inlet
• Straight-out-the-back exit: fits factory bumpers, roll pans, and most trailer hitches without modification
• Bolt-on installation: factory-style hangers and all necessary hardware included — no welding, no cutting
• Made in the USA — Gibson manufactures 65586 domestically
• Lifetime Limited Warranty

Gibson 65586 Specifications

Vehicle Fitment — Chevrolet Colorado

Vehicle Fitment — GMC Canyon

Sound, Performance & Installation

The Gibson 65586 uses a Superflow muffler with a baffled and chambered internal design no fiberglass packing to burn out, no resonated drone. At cruise RPM the system produces a composed, low-pitched rumble. Crack the throttle open and the 65586 answers with the kind of aggressive tone that reminds you there's real power under the hood. Note that exhaust volume increases under towing conditions, which many Canyon and Colorado truck owners actually prefer.

Installation on both the Colorado and Canyon is a bolt-on job. All hardware is included factory-style rubber hangers, clamps, and everything needed to make the swap in a single afternoon with basic hand tools. No welding, no cutting, no fabrication. The system exits straight out the rear and the dual tips position naturally within the factory bumper opening on all supported cab/bed configurations.

Comparing Gibson Cat-Back Part Numbers

Gibson makes several exhaust options for the 2015–2022 Colorado and Canyon platform. The 65586 is the Dual Split Cat-Back in 2.25-inch diameter. If you want a single-exit setup for the same vehicle, check Gibson's single-exit cat-back for this application. The 65586 is the choice when you want the symmetrical dual-tip look, the split-exit sound signature, and maximum visual impact at the rear of the truck.

Frequently Asked Questions

Does the Gibson 65586 fit both the Chevrolet Colorado and the GMC Canyon?
Yes. The 65586 is a direct fitment for both the 2015–2022 Chevrolet Colorado and the 2015–2022 GMC Canyon on the 2.5L and 3.6L engines in Crew Cab Long Bed, Crew Cab Short Bed, and Extended Cab Long Bed configurations. The Colorado and Canyon share the same platform, so Gibson engineered one system — part 65586 to serve both trucks.

Will the Gibson 65586 void my factory warranty?
No. Under the Magnuson-Moss Warranty Act, a dealer cannot void your factory powertrain warranty simply because you installed an aftermarket exhaust. The dealer would need to prove that part 65586 directly caused a specific failure. Gibson's Lifetime Limited Warranty provides additional coverage on the exhaust system itself.

Is the Gibson 65586 50-state legal?
The 65586 is a cat-back system it replaces components downstream of the catalytic converter and does not affect emissions control hardware. Cat-back systems are emissions-exempt in all 50 states.

Note: a California Prop 65 warning applies to this product as with most automotive aftermarket components.

How much horsepower does the Gibson 65586 add to the Colorado 2.5L?
Gibson's dyno testing on the Colorado/Canyon 2.5L and 3.6L engines shows 10–15 horsepower and 15–20 lb-ft of torque gains in the 1,800–3,000 RPM range. These are measured at the wheels on a chassis dynamometer with the 65586 system installed versus the factory exhaust.

What size are the tips on the Gibson 65586?
The 65586 comes with two 4-inch polished T-304 stainless steel rolled angle-cut tips. Each tip is 12 inches long with a 2.25-inch inlet, and they attach via a clamp-on connection to the mandrel-bent 409 stainless steel tubing.

Does the Gibson 65586 fit the Colorado/Canyon with a trailer hitch?
Yes. Gibson designed the 65586 to exit straight out the back and be compatible with most factory bumpers, roll pans, and trailer hitches. If you run a class III receiver hitch or a factory tow package on your Colorado or Canyon, the 65586 will still fit without modification in most cases.

What's the difference between 409 and T-304 stainless steel on the Gibson 65586?
The 65586 uses 409 stainless steel for the mandrel-bent tubing a ferritic stainless alloy that offers excellent heat and corrosion resistance at a reasonable cost, ideal for the high-temperature mid-pipe sections. The tips are T-304 austenitic stainless, which is more corrosion-resistant and takes a mirror polish better, giving the 65586 its clean, show-quality tip appearance.

Does the Gibson 65586 drone at highway speeds?
The Gibson Superflow muffler used in the 65586 is specifically engineered to minimize interior cabin drone. Its baffled and chambered design with no internal packing cancels the specific sound frequencies responsible for highway drone while preserving the aggressive tone at acceleration. Most Colorado and Canyon owners report a comfortable cabin environment at 65–80 mph cruise.

Is the Gibson 65586 made in the USA?
Yes. Gibson Performance Exhaust manufactures the 65586 domestically in the United States.

What does the Gibson 65586 warranty cover?
The 65586 is backed by Gibson's Lifetime Limited Warranty covering defects in materials and workmanship for the life of the original purchaser's vehicle. This warranty is separate from and in addition to your vehicle's factory warranty, which is protected under the Magnuson-Moss Warranty Act.