My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Gibson Exhaust 612001 Cat-Back Dual Sport Exhaust System Stainless Steel

(2007-2009 Hummer H2)

Part of: Gibson Exhaust Dual Sport Cat-Back Exhaust System

Other options in this family: Gibson Exhaust 618816B Gibson Exhaust 9802 Gibson Exhaust 7100 Gibson Exhaust 69221 Gibson Exhaust 69127

Manufacturer

Picture for manufacturer Gibson Exhaust

Part Number

612001
5 reviews
Sale Price

$816.54

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Gibson 612001 Dual Sport Cat-Back Exhaust System is engineered for truck and SUV owners who demand performance gains without sacrificing practicality. The dual-exit design routes exhaust behind the rear tires, keeping the path clear for towing a trailer while delivering an aggressive, head-turning look on road or off.

Built for a hassle-free, bolt-on installation with no welding required, this system fits together with precision-engineered components for a clean, professional finish. Every system is dyno-tested to validate real-world performance, with average gains of 10–15 horsepower and 15–20 lb-ft of torque. Backed by Gibson's Lifetime Limited Warranty.

Muffler Specifications:

  • Design: Baffled and chambered — no internal packing
  • Sound profile: Aggressive, authoritative deep exhaust tone with minimal interior drone
  • Body dimensions: 4 x 9 x 18 in. oval body
  • Inlet: 2.25 in. dual inlet
  • Outlet: 3.50 in. center outlet

Exhaust Tip Specifications:

  • Material: Polished T304 stainless steel
  • Style: 4 in. round slash-cut tip, clamp-on fitment
  • Inlet diameter: 2.25 in.
  • Outlet diameter: 4 in.
  • Tip length: 12 in.

The Gibson Dual Sport exhaust system combines proven performance engineering with premium T304 stainless steel construction for long-lasting durability and corrosion resistance — a direct upgrade over restrictive factory exhaust systems.

Products specifications

Fits

2007-2009 Hummer H2

Tubing Diameter

2.25-in. Stainless mandrel bent tubing.

Muffler Dimension

4 x 9 x 18 in. Oval Body; 2.25 in. Dual Inlet; 3.50 in. Center 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. Round Slash-Cut Tip. Clamp on.

Outlet

Dual

Tip Specifications

Inlet 2.25 in.; Outlet 4 in.; L-12 in.

Category

Truck and SUV

Tip Diameter

4.500 in.

Tubing Diameter

2.250 in.

Material

Stainless Steel

Exit Position

Straight Out Back

Exhaust Type

Cat-Back

Tail Pipe Diameter

2.250 in.

Inlet Inside Diameter

2.250 in.

Muffler Body Length

18.000 in.

Parts I needed at great price. Ordered parts on Thur and delivered on Sat - very quick. Excellent communication regarding shipment. Wish I had found them sooner. I'll be back to buy parts and would not hesitate to recommend Autoplicity. A very nice experience.

I ordered a set of inner tie rods for my car from Autoplicity and found their prices to be the lowest online for the brand I was looking for. Items were ship out in 2 business days from the original manufacturer. Shipping prices were kind of on the expensive end considering the package size and weight so if Autoplicity adjust their shipping prices to be more competitive, I think their service and pricing would be hard to beat!

Wow talk about FAST shipping...I placed the order...and the door bell rang for delivery!!! The electronic points and coil when in the FJ 4o in just a few minutes and work perfectly...THANKS so much! Larry in Montana

Great pricing and quick shipping. I'll be using them again for sure.

Looked everywhere for a good price on Warn locking hubs, they were the best price around. Shipped right away.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy