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

Diamond Eye K4122S 4" Aluminized Steel Exhaust System 2006-2007.5 Duramax 6.6L

(Chevrolet Silverado 2500 HD 2006-07, Silverado 3500 HD 2007, Silverado 3500 2006-07; GMC Sierra 2500 HD 2006-07, Sierra 3500 2006-07 + 3 more models)

Manufacturer

Picture for manufacturer Diamond Eye Manufacturing

Part Number

K4122S
12 reviews
Sale Price

$608.67

Estimated ship date Wednesday, December 16

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 Diamond Eye K4122S is a complete 4-inch aluminized steel exhaust system engineered specifically for 2006-2007.5 Chevrolet and GMC 2500/3500 trucks equipped with the 6.6L Duramax diesel engine. This system fits all cab and bed length configurations, providing a universal solution for these model years.

Key Features:

  • 4-inch mandrel-bent aluminized steel construction for maximum exhaust flow and durability
  • Precision-engineered using CNC mandrel bending technology for smooth, unrestricted bends
  • Complete cat-back or turbo-back system (configuration varies by application)
  • Reduces exhaust gas temperatures and backpressure for improved performance
  • Enhances throttle response, fuel economy, and horsepower gains
  • Direct bolt-on installation with all necessary hardware included
  • Designed and manufactured in the USA with rigorous quality control standards

Diamond Eye's mandrel-bent construction ensures consistent pipe diameter throughout each bend, eliminating the restrictions found in crush-bent systems. The 4-inch diameter provides significantly improved flow over the restrictive factory exhaust, allowing your Duramax to breathe freely and perform at its best. Aluminized steel offers excellent corrosion resistance and longevity at an economical price point.

Products specifications

Fits

Chevrolet Silverado 2500 HD 2006-07, Silverado 3500 HD 2007, Silverado 3500 2006-07; GMC Sierra 2500 HD 2006-07, Sierra 3500 2006-07; Toyota Land Cruiser 1998-2007; Volvo XC40 2019-21; Volkswagen Transporter 1968-72, 1974-79

Exit Location

Passenger side

Exit Quantity

One

Inlet Quantity

One

Intermediate Pipe Diameter (in)

4.000 in.

Muffler Configuration

Single inlet/Single outlet

Muffler Finish

Natural

Muffler Included

Yes

Muffler Material

Stainless steel

Muffler Quantity

One

Muffler Style

Perforated tube

Quantity

Sold as a kit.

System Finish

Natural

System Material

Stainless steel

System Style

Cat-back

Tailpipe Diameter (in)

4.000 in.

Tip Included

No

Material

409 Stainless Steel

Great prices! Couldn't find anyone else even close.

Quick and easy service.

had just what I needed.Easy check out.

Fairly straightforward process. I especially like the seamless link with Amazon.com.

I recently ordered 2 Borla Dual Round Intercooled Tips from Autoplicity.com for one reason and reason only...their prices can not be beat! No where else online can anyone match them! <br>

Best price

Prices are great

Right item, right price !

Autoplicity had exactly the part I was looking for, for my SRT8 Challenger, at the best price I could find!

The site does not inspired confidence due to the current look and feel. However the delivery was fast and the issue with ordering was resolved in matter of days. The only down side was that on of the parts did not match the original part of my vehicle. As

Easy to use my Amazon checkout.

Great pricing

Share icon
Return Policy
Returns are easy at Autoplicity

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