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Gibson 615632 Cat-Back Single Side Exhaust System Stainless Steel

(2014-2018 Chevrolet Silverado 1500 High Country/LTZ; 2014-2018 GMC Sierra 1500 Denali/SLT)

Part of: Gibson Performance Single Side Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 619995 Gibson Exhaust 319675 Gibson Exhaust 315536 Gibson Exhaust 618815B Gibson Exhaust 315599

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

615632
14 reviews
Sale Price

$841.84

Estimated ship date Tuesday, November 17

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Gibson 615632 is a cat-back, single side exit exhaust system constructed from T304 stainless steel, engineered to maximize low-end performance where it matters most for everyday driving, towing, and hauling. The system exits cleanly behind the rear tire for a factory-clean appearance with a serious performance upgrade.

Dyno testing confirms peak torque and horsepower gains in the 1,800–3,000 RPM range, delivering an average of 18–21 horsepower and 20–22 lb-ft of torque — exactly the power band needed for acceleration, hill climbing, passing, and towing. Despite its aggressive external sound character, the baffled and chambered muffler design keeps interior cabin drone to a minimum.

Muffler Specifications:

  • Design: Baffled and chambered — no internal packing
  • Sound: Aggressive exterior tone with minimal interior drone
  • Body: 8 x 11 x 24 in. oval
  • Inlet: 3.50 in. offset
  • Outlet: 3.50 in. offset

Exhaust Tip Specifications:

  • Style: 4 in. polished T304 stainless steel round rolled edge tip
  • Attachment: Clamp-on
  • Inlet: 3.50 in.
  • Outlet: 4.0 in.
  • Length: 12 in.

System Features:

  • T304 stainless steel construction for long-term corrosion resistance
  • Mandrel-bent tubing maintains constant exhaust flow through every bend
  • Zinc-plated hangers and clamps included
  • Bolt-on installation — no welding or cutting required
  • Backed by a Lifetime Limited Warranty

Sold as a complete kit with all required hardware for a straightforward, professional-looking installation.

Products specifications

Fits

2014-2018 Chevrolet Silverado 1500 High Country/LTZ; 2014-2018 GMC Sierra 1500 Denali/SLT

Tubing Diameter

3.5-in. Stainless mandrel bent tubing.

Muffler Dimension

8 x 11 x 24 in. Oval Body; 3.50 in. Offset Inlet; 3.50 in. Offset Outlet.

Muffler Description

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

Material

Stainless

Prop 65

Yes

Exit Position

Exits In Stock Location.

Tip Description

4in. Polished T304 Stainless Round Rolled Edge Tip. Clamp On.

Outlet

Single

Tip Specifications

Inlet 3.50 in.; Outlet 4.0 in.; L-12 in.

Category

Truck and SUV

Tubing Diameter

3.500 in.

Muffler Type

Chambered

Tail Pipe Diameter

3.500 in.

Muffler Body Length

24.000 in.

Inlet Inside Diameter

3.500 in.

System Type

Cat Back

Tip Diameter

3.500 in.

Exit Style

Straight

Exhaust Type

Cat-Back

Exit Position

Stock

Outlet Outside Diameter

3.500 in.

Material

Stainless Steel

Fast Shipping. Good packaging. Very good pricing. Will shop from again.

Great so far.

Fast good prices.

Prices are comparable to other retailers. And they have items in stock that others were saying it would take a month. Fast shipping and great communication. Thank

So far so good!

GREAT

Thank you for the great prices

Good seller. Prompt email on ordering information. Fast shipping.

I'M A HAPPY CUSTOMER

Fast and easy

good shopping experience

Thanks for the fast processing and great prices!

Super fast shipping well informed will order again

Autoplicity has really good service. They give you such good prices and yet they're still willing to give you discounts on your purchases. They emailed me a day later after purchase with shipping number. I would recommend them to anyone!

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