My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Gibson Performance Exhaust 5656 Cat-Back Dual Sport Exhaust System Aluminized

(2014-2018 Chevrolet Silverado 1500; 2014-2018 GMC Sierra 1500)

Manufacturer

Part Number

5656
Sale Price

$676.54

Estimated ship date Tuesday, November 24

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Gibson Performance Exhaust 5656 is a cat-back dual sport exhaust system engineered for trucks and SUVs that need rear-exit clearance for towing. Designed to exit cleanly behind the rear tire, this system delivers an aggressive, deep exhaust tone without generating annoying interior drone — backed by dyno-tested gains averaging 18–20 horsepower and 15–20 lb-ft of torque.

Key Features:

  • Dual cat-back design exits behind the rear tire — ideal for use with tow trailers
  • 3-inch/2.25-inch aluminized mandrel bent tubing for unrestricted exhaust flow
  • Gibson SuperFlow muffler with baffled and chambered design — no internal packing, minimal interior drone, aggressive sound
  • 4-inch polished T304 stainless steel rolled slash-cut tip (2.25-inch inlet, 4.0-inch outlet, 12-inch length)
  • Bolt-on installation — no cutting or welding required
  • Includes all clamps, factory-style hangers, and hardware for a complete installation
  • Dyno tested — average gains of 18–20 HP and 15–20 lb-ft of torque
  • Lifetime Limited Warranty

This aluminized steel cat-back system is sold as a complete kit with all necessary hardware for a straightforward, professional-quality installation. The dual sport exhaust configuration is specifically designed to keep exhaust routing clear of trailer hitches and tow equipment while giving your truck a distinct, sport-forward appearance.

Products specifications

Fits

2014-2018 Chevrolet Silverado 1500; 2014-2018 GMC Sierra 1500

Tubing Diameter

3-in./2.25-in.Aluminized mandrel bent tubing.

Muffler Dimension

4 x 9 x 18 in. Oval Body; 3.00 in. Center Inlet; 2.25 in. Dual Outlet.

Muffler Description

Baffled and Chambered Muffler Design, No internal Packing, Minimal Interior Drone, Aggressive Sound

Material

Aluminized

Prop 65

Yes

Tip Description

4in. Polished T304 Stainless Rolled Slash-Cut Tip. Clamp on.

Exit Position

Exits Behind Rear Tire.

Tip Specifications

Inlet 2.25 in.; Outlet 4.0 in.; L-12 in.

Outlet

Dual

Category

Truck and SUV

Muffler Type

Chambered

Tubing Diameter

2.250 in.

Inlet Inside Diameter

2.250 in.

Muffler Body Length

18.000 in.

Exit Position

Dual Rear

Tail Pipe Diameter

2.250 in.

Tip Logo

None

Tip Diameter

4.000 in.

Outlet Outside Diameter

2.250 in.

Exit Style

Straight

System Type

Cat Back

Exhaust Type

Dual

Fast delivery tires as described. A+++++

One of the steel bars was bent on the end. I had to straighten it out with a hammer.

Fast delivery! Great price!

none

Everything was great from autoplicity, but Fed ex their tracking of shipment sucks. All it does is say shipped, then in transit, finally delivered, that isnt order tracking that's basically the shipping process, it said in transit for 3 days (of course) leaving me with no idea how close it is.

A+ so far.

Great prices. Fast shipping. Huge inventory.

I was having difficulty finding EGR Fender Flares that were available, but Autoplicity not only had the exact set I needed but had them at the lowest price I'd seen and had super fast shipping - thank you Autoplicity!

Satisfactory

Received order quickly. I had to return it because I ordered the wrong part. I would not hesitate to order from this company again.

These guys have amazing prices, shipping time was awesome considering it's right before christmas.

Wowo, incredible fast

Great prices!

Easy and cheap, thanks for your service!!

Quick Purchase, very good.

Great prices, better than any competitors and shipped fast. You do pay for shipping, but the discount on the merchandise makes up for that! So far would purchase from them again!

Ordered a Thule Bike Rack from Autoplicity and was greatly pleased with the price. It was the best on the internet. There was an issue with the shipment of the item and some confusion but this was resolved in a professional manner by a customer service manager. Overall, I'm pleased I got a deal.

the price should be available for viewing on the last processing screen.

Lowest price I could find on the internet. They do what they say. Shipped promptly with UPS tracking no. sent by email. Would recommend.<br>

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy