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Gibson Exhaust 66565 Cat-Back Dual Split Exhaust System - Stainless Steel

(2011-2018 Ram 1500; 2009-2010 Dodge Ram 1500)

Part of: Gibson Performance Exhaust Dual Split Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 700001 Gibson Exhaust 312700 Gibson Exhaust 17303-B Gibson Exhaust 9508 Gibson Exhaust 66568

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

66565
6 reviews
Sale Price

$802.20

Estimated ship date Monday, November 23

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Product Details

The Gibson Performance Exhaust 66565 Cat-Back Dual Split Exhaust System delivers dyno-proven power gains, a deep aggressive exhaust tone, and a clean dual-tip look — all with a straightforward bolt-on installation. Built from heavy-gauge 409 stainless steel mandrel-bent tubing, this system is engineered to reduce backpressure and maximize exhaust flow for real, measurable performance improvements.

Performance Gains:

  • Dyno-proven gains of 10–15 horsepower and 15–20 lb-ft of torque
  • Mandrel-bent 2.50-in. 409 stainless steel tubing for smooth, unrestricted exhaust flow
  • Dual tip exit straight out the back for a clean, aggressive appearance
  • Compatible with most bumpers, roll pans, and trailer hitches

Gibson Superflow Muffler Specs:

  • Design: Baffled & chambered — no internal packing, nothing to blow out
  • Sound: Deep, aggressive exhaust note with minimal interior cabin drone
  • Body: 4 x 9 x 18 in. oval body
  • Inlet: 3.00 in. center inlet
  • Outlet: 2.25 in. dual outlet

Exhaust Tip Specs:

  • Style: 4 in. polished T304 stainless steel rolled slash-cut tip
  • Connection: Clamp-on design
  • Inlet: 2.25 in.
  • Outlet: 4.0 in.
  • Length: 12 in.

Installation & Warranty:

  • Hassle-free bolt-on installation — no welding required
  • Includes all hardware and factory-style hangers
  • 50-state street legal
  • Proudly made in the USA
  • Backed by a Lifetime Limited Warranty

Products specifications

Fits

2011-2018 Ram 1500; 2009-2010 Dodge Ram 1500

Tubing Diameter

2.50-in. Stainless 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

Exit Position

Exit Is Straight Out The Back.

Material

Stainless

Prop 65

Yes

Tip Description

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

Tip Specifications

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

Outlet

Dual

Category

Truck and SUV

Exhaust Type

Cat-Back

Inlet Inside Diameter

3.000 in.

Tip Diameter

4.000 in.

Tail Pipe Diameter

4.000 in.

Tubing Diameter

2.250 in.

Material

Stainless Steel

Exit Position

Straight Out Back

Muffler Body Length

18.000 in.

Great price cheapest around super fast shipping will go to for all other performance parts needs!!!!!

Very fast shipping, always great prices.

Very good

After shopping around for a specific cargo carrier, Autoplicity had the best total price by over $50 and great ratings, so I gave them a try. I received the SportRack Aero XL - A90275 last Thursday and am VERY impressed with their price and service. The cargo carrier arrived quickly (ordered Sat, rec'd Thurs) and in fine shape. I will recommend Autoplicity to my friends, and plan to shop with them for my future automotive needs.

Easy to order

Very pleased with product and shipping prices. Best price on the internet.Took a few to many days between order placement and shipping. Once the product was shipped the timing was very good.Talked with support-they were helpful and friendly.

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