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 K4122A-RP 4 Inch Aluminized Cat-Back Single Exhaust No Muffler

(Toyota Tundra 2004-06; Chevrolet Silverado 2500 HD 2006-07, Silverado 3500 HD 2007, Silverado 3500 2006-07; GMC Sierra 2500 HD 2006-07 + 4 more models)

Manufacturer

Picture for manufacturer Diamond Eye Manufacturing

Part Number

K4122A-RP
20 reviews
Sale Price

$415.37

Estimated ship date Monday, December 14

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 K4122A-RP is a complete 4-inch aluminized steel cat-back exhaust system engineered specifically for 2006-2007 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L Duramax LBZ diesel engine. This system fits all cab and bed length configurations and features a straight pipe design with no muffler for maximum exhaust flow and an aggressive sound.

Key Features:

  • Precision-bent mandrel tubing maximizes exhaust gas flow and reduces backpressure
  • Straight pipe configuration eliminates muffler restriction for uninhibited exhaust note
  • High-quality aluminized steel construction provides excellent rust and corrosion resistance
  • Single-exit passenger side configuration
  • Vehicle-specific design utilizes factory OEM hangers for secure, factory-like fitment
  • Complete bolt-on installation with all necessary clamps and hardware included
  • Delivers measurable gains in horsepower and torque
  • Improves throttle response and fuel economy
  • Lowers exhaust gas temperatures (EGTs) for safer towing and hauling

This performance exhaust system is designed for diesel enthusiasts who want maximum flow and an aggressive exhaust tone. The 4-inch diameter tubing provides significant improvement over the restrictive factory exhaust, while the mandrel-bent construction maintains consistent diameter through all bends for optimal flow characteristics. Installation is straightforward using factory hanger locations and the included hardware. Note: This kit does not include an exhaust tip.

Products specifications

Fits

Toyota Tundra 2004-06; Chevrolet Silverado 2500 HD 2006-07, Silverado 3500 HD 2007, Silverado 3500 2006-07; GMC Sierra 2500 HD 2006-07, Sierra 3500 2006-07; Volkswagen Passat 1998-2005, Transporter 1968-72; Volvo XC40 2019-21

Exit Location

Passenger side

Exit Quantity

One

Inlet Quantity

One

Intermediate Pipe Diameter (in)

4.000 in.

Muffler Included

No

Quantity

Sold as a kit.

System Finish

Aluminized

System Material

Steel

System Style

Cat-back

Tailpipe Diameter (in)

4.000 in.

Tip Included

No

Finish

Aluminized

Thank you for your quick delivery and for making sure that I received it .

Good service. Item doesn't fit, wrong size. Awaiting RMA to return for refund.

Very pleased with my purchase and shopping experience.

Fast and easy to get what you need

Fast shipping, great price on exhaust parts.

good

This copany shipped my order promptly. I would do business with them again.

Buying experience was excellent. Now, I hope it fits my 1973 Buick Centurion Convertible!

Good price and good selection.

great item at good price, with fast shipping

Shopped all around for a new battery for my wife's custom car and found Autoplicity's prices hard to beat!!!

Great price and good company to buy from!

Easy

Found the best price at Autoplicity on my cold air intake. Quick turn-around time and inexpensive shipping. I'll definitely be back.

Excellent prices and fast shipping. Recommended. Saved $200 on an exhaust system compared to a major discount auto retailer. Cheapest prices I found online by far. It took a couple of days to process my order, which may have been due to the manufacturer,

Quick and easy!

The roof rack I ordered came quickly, shipping was free, and far cheaper than anyone else.<br>This was my first order, and I will order again.

Product was exactly what I ordered and was sent fast. I will definitely order more products from Autoplicity. Great Site, fast service!

Great prices. They sent what I ordered and it was what I expected. I would shop with them again.

Item Blue Ox gooseneck hitch exactly as described and fast delivery. Unreal how they shipped something this heavy for what they did. Overall...half price of local hitches with same rating.<br>Will buy from again.

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