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Gibson Exhaust 66540 Cat-Back Dual Extreme Exhaust System Stainless

(2005-2008, 2010 Dodge Dakota; 1987-1994 Chevrolet Blazer Base; 2006-2009 Buick Lucerne; 2006-2009 Mitsubishi Raider; 2011 Ram Dakota)

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

Other options in this family: Gibson Exhaust 9704 Gibson Exhaust 5403 Gibson Exhaust 5587 Gibson Exhaust 5572 Gibson Exhaust 65587

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

66540
9 reviews
Sale Price

$803.51

Estimated ship date Sunday, November 15

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Product Details

The Gibson 66540 Cat-Back Dual Extreme Exhaust System is engineered for truck owners who demand aggressive performance and bold street presence. This bolt-on cat-back system exits behind the rear tires at an aggressive angle, delivering a powerful, dyno-tuned exhaust tone with no cutting or welding required. Expect average performance gains of 15–20 horsepower thanks to Gibson's carefully engineered flow design. Backed by a Lifetime Limited Warranty, this system combines durability, performance, and show-quality aesthetics.

Muffler Specifications:

  • Design: Baffled and chambered muffler — no internal packing
  • Sound Profile: Aggressive performance tone with minimal interior drone
  • Shape: 7 in. round body
  • Inlet: 3 in. center inlet
  • Outlet: 2.50 in. dual outlet
  • Length: 24 in.

Tip Specifications:

  • Material: T304 polished stainless steel
  • Style: Round slash-cut, clamp-on design
  • Inlet: 2.50 in.
  • Outlet: 3.50 in.
  • Length: 12 in.

Key Features:

  • True bolt-on installation — no welding required
  • Dual rear exit behind rear tires with aggressive angle placement
  • Dyno-tuned for street performance gains averaging 15–20 HP
  • Polished T304 stainless steel slash-cut tips for show-quality appearance
  • Baffled and chambered muffler design minimizes interior cabin drone
  • Lifetime Limited Warranty

Whether you're building a show truck or simply want more power and a more aggressive exhaust note, the Gibson 66540 Dual Extreme Cat-Back System delivers on all fronts with premium stainless construction and proven performance results.

Products specifications

Fits

2005-2008, 2010 Dodge Dakota; 1987-1994 Chevrolet Blazer Base; 2006-2009 Buick Lucerne; 2006-2009 Mitsubishi Raider; 2011 Ram Dakota

Tubing Diameter

2.50-in. Stainless mandrel bent tubing.

Muffler Dimension

7 in. Round; 3 in. Center Inlet; 2.50in. Dual Outlet; L-24 in.

Muffler Description

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

Material

Stainless

Tip Specifications

Inlet 2.50in.; Outlet 3.50in.; L-12in.

Prop 65

Yes

Tip Description

3.5in. Polished T304 Stainless. Round Slash-Cut Tip. Clamp on.

Exit Position

Exits Behind Each Rear Tire.

Outlet

Dual

Category

Truck and SUV

Exhaust Type

Cat-Back

Exit Position

Dual Split Rear Behind Rear Tires

Tail Pipe Diameter

2.500 in.

Tubing Diameter

2.500 in.

Muffler Body Length

24.000 in.

Material

Stainless Steel

Tip Diameter

3.500 in.

Inlet Inside Diameter

3.000 in.

This company is pretty good even when I found what I was looking for cheaper then some other websites

Absolute best price on the web, very fast. Definitely ordering Autoplicity in the near future....

Great customer service, ships fast. Will buy from again

Bought Motive Brake Bleeding Kit (international) . Best Pricing all around.<br>Ordered on Tuesday , received via UPS Ground (cheap shipping) on Thursday Noon.<br>Excellent Packing.<br>Super Fast Shipping.<br>Very Statisfied with my on-line order.<br>Highly Recommended.

Excellent prices + great customer service = people I want to do business with... period.

Awesome price! Shipping could be faster, but it was fast enough. Will deff buy again.

Good customer service.Very friendly persons in service dept as well. Will shop here again.

This is the first time I've ordered from this site, but things look good from what I can tell so far. They had the parts I was looking for (including a fairly specialized racing part) for a price slightly lower than other places I had looked, and my order shipped the next business day. At the time I wrote this, they were also offering $5 back on my order for writing a review. ;-)

very good low price, had a slight issue but customer service was amazing,. i would recommend AutoPlicity to anyone because of that, good prices, good customer service,. (meaning trust worthy) why not :). A+++ Service will buy from again!

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