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Diamond EyeK4212S Performance Exhaust System - 4 in. Main Piping Diameter, Single, Behind the rear tire, Natural, Stainless Steel

Part #: DIAK4212S | Mfr #: K4212S

In Stock
Ships out in 1-2 Business Days
  • APW Bestseller
  • Low Price Guarantee

5 5 out of 5 stars
(3 customer reviews)


List Price: $587.46

Save: $242.09



  • Series: Diamond Eye Performance
  • Material: Stainless Steel
  • Color/Finish: Natural
  • Quantity Sold: Assembly
  • Muffler Sound Level: Aggressive
  • Recommended Use: Performance
  • Anticipated Ship Out Time: 1-2 Business Days
  • Attachment Style: Clamp-On
  • Downpipe Diameter: 4 in.
  • Exit Location: Behind the rear tire
  • Exit Quantity: Single
  • Includes: Mounting Hardware
  • Main Piping Diameter: 4 in.
  • Muffler Configuration: Single Inlet and Outlet
  • Muffler Finish: Natural
  • Muffler Material: Stainless Steel
  • Muffler Quantity: One
  • System Type: Turbo-Back
  • Warranty: 1-year Diamond Eye limited warranty

Product reviews

Good price, great fit by Geo, July 1, 2011

Ease of Use/Installation:
Overall Rating:

We had the use of a lift which made the job much easier. It helps to have a helper, but could be done alone. Best price I found on the internet. Quick delivery. Now what do I use the extra 3 feet of pipe for? My truck is standard cab.

excellent for the money by wld-turkey, January 25, 2011

Ease of Use/Installation:
Overall Rating:

Took 4 hours to remove old and install the new for a novis and one helper. Was impressed.

Good bang for the buck by Hunter, October 26, 2010

Ease of Use/Installation:
Overall Rating:

This kit is as good as any. Great price for kit. Installation was a bit of a challenge, there is a coolant pipe from lower hose to block area that runs along passenger side of engine to engine oil cooler. This tube will be rusty is on a older truck. Bending it when rusty will get you stranded. Will need to replace tube with new fresh steel that you can bend to get new 4" down pipe to fit. Good luck!! You would have this problem no matter what performance exhaust you purchased.