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Gibson Exhaust 65658 Dual Extreme Cat-Back Exhaust System

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

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 65587 Gibson Exhaust 65402

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

65658
17 reviews
Sale Price

$825.69

Estimated ship date Sunday, November 22

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Gibson Performance Exhaust 65658 Dual Extreme Exhaust System is engineered for truck enthusiasts who demand aggressive styling and maximum performance. This complete cat-back system features a unique dual outlet design that exits behind the rear tires at an aggressive angle, delivering a commanding presence on the road.

Performance Benefits:

  • Dyno-tested and proven to deliver 15-20 horsepower gains on average
  • Performance-tuned muffler design provides a deep, aggressive exhaust note
  • Optimized exhaust flow for improved throttle response and power delivery
  • Polished stainless steel tips for premium appearance

Installation and Quality:

  • Complete bolt-on installation with no welding required
  • All necessary hardware included for straightforward installation
  • Backed by Gibson's Lifetime Limited Warranty
  • Precision-engineered for direct factory replacement fitment

This Dual Extreme system combines show-quality aesthetics with serious performance gains, making it the ideal choice for truck owners who refuse to compromise on style or power. The distinctive rear-exit design and aggressive exhaust tone set your vehicle apart while the dyno-proven performance gains deliver real-world results.

Products specifications

Fits

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

Tubing Diameter

3-in./2.25-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

Material

Stainless

Prop 65

Yes

Tip Description

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

Exit Position

Exits Behind Each Rear Tire.

Tip Specifications

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

Outlet

Dual

Category

Truck and SUV

Inlet Inside Diameter

3.000 in.

Tubing Diameter

3.00 in. / 2.25 in.

Tail Pipe Diameter

4.000 in.

Exit Position

Behind Rear Tire

Material

Stainless Steel

Exhaust Type

Cat-Back

Muffler Body Length

18.000 in.

Tip Diameter

4.000 in.

Ordered 4 Doorman TPMS sensors for my 2007 F-150 as Autoplicity had the lowest total price on the internet. Received them within 3 business days and were packaged well. I took 1 star off due to the order process. Website speed was slow and unstable.

The rack that I ordered for my truck didn't fit my truck I will be calling Monday to figure out a solution.

All good!!

So far, so good!

Great service and product

thanks for help

good

super easy and fast.

So far, so good. Found my part fairly easy and is was half the price of the auto parts stores around me!

It was fast and easy. I would definitely do business with again.

Super fast shipping. Got my product in 2 days with standard shipping option. Best Price I found on the afe dry pro s filter online as well!

Thank

Great

So far so good

Had the best price on the Thule bike rack I was looking for. Bought online on Friday....shipped on Monday. Looking forward to buying more things here!

great service, even better price! Would recommend Autoplicity to anyone.

Great prices... easy Web interface

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