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Gibson 618604 Cat-Back Single Exhaust System Stainless Steel

(2007-2013 Toyota Tundra Base/GS; 2014-2016 Toyota Tundra SR)

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

618604
6 reviews
Sale Price

$910.03

Estimated ship date Wednesday, November 18

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Product Details

The Gibson 618604 Cat-Back Single Exhaust System is a bolt-on performance upgrade engineered for improved acceleration, low-end torque, and overall drivability. Constructed from durable stainless steel, this single-exit system is designed to exit behind the rear tire, delivering an aggressive exhaust note while keeping interior cabin noise to a minimum compared to other performance exhaust systems.

Dyno-tested results demonstrate peak gains at low RPM ranges (1,800–3,000 RPM), making this system particularly well-suited for towing, hill climbing, and passing maneuvers. Expect average horsepower gains of 10–15 HP and torque increases of 15–20 lb-ft.

Muffler Details:

  • Baffled and chambered muffler design
  • No internal packing material
  • Minimal interior drone
  • Aggressive exhaust tone
  • Dimensions: 4 x 9 x 18 in. oval body
  • 2.25 in. dual inlet; 3 in. center outlet

Exhaust Tip Details:

  • 4 in. polished T304 stainless steel rolled slash-cut tip
  • Clamp-on installation
  • Inlet: 3 in. | Outlet: 4 in. | Length: 12 in.

Installation & Warranty:

  • 100% bolt-on installation — no welding required
  • Professional-quality fit and finish
  • Backed by Gibson's Lifetime Limited Warranty

Products specifications

Fits

2007-2013 Toyota Tundra Base/GS; 2014-2016 Toyota Tundra SR

Tubing Diameter

3-in. Stainless mandrel bent tubing.

Muffler Dimension

4 x 9 x 18 in. Oval Body; 2.25 in. Dual Inlet; 3. in. Center 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 Rear Tire.

Outlet

Single

Tip Specifications

Inlet 3 in.; Outlet 4.0 in.; L-12 in.

Category

Truck and SUV

Tubing Diameter

3.000 in.

Exhaust Type

Cat-Back

Muffler Body Length

18.000 in.

Tail Pipe Diameter

4.000 in.

Material

Stainless Steel

Tip Diameter

4.000 in.

Inlet Inside Diameter

2.250 in.

Exit Position

Behind Rear Tire

They had an item that was somewhat hard to find at a reasonable price. Glad I found them.

very good

The best prices and fast shipping!

Absolutely the best bargain you'll find! Don't pay retail mark up at the parts store, buy at Autoplicity and know you're saving money.<br>.

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

Easy website to shop on. Good phone support. Package will be arriving in a timely manner. All in all seems like a good company.

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