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Kooks 3 in. Off-Road Y-Pipe (14-18 5.3L Silverado 1500 w/ Long Tube Headers)

AmericanTrucks no longer carries the Kooks 3 in. Off-Road Y-Pipe (14-18 5.3L Silverado 1500 w/ Long Tube Headers). Please check out 2014-2018 Silverado 1500 Exhaust Pipes for an updated selection.

Features & Details

  • Smoothens Exhaust Flow for Increased Power
  • Adds More Aggressive Exhaust Note
  • Off-Road Y-Pipe Design
  • 3 in. Mandrel-Bent Tubing
  • Made from 304 Stainless Steel
  • Intended for Off-Road or Track Use Only
  • Does Not Include Catalytic Converters
  • For Use with Kooks Long Tube Headers
  • OEM Outlet for Use with Stock Exhaust
  • Fits 2014-2018 5.3L Chevrolet Silverado 1500s w/ Long Tube Headers
Boosts Vehicle Performance. If you’re all about off-roading, then you want to eke out every ounce of performance from your vehicle. The Kooks 3 in. Off-Road Y-Pipe removes those pesky factory catalytic converters to drastically improve your exhaust gas airflow. This increases your Chevy Silverado’s horsepower and torque for an unparalleled off-roading experience.

Helps Create a More Aggressive Exhaust Note. Because of its free-flowing design, the Kooks Off-Road Y-Pipe does more than improve your truck’s performance. It also adds a louder and more aggressive exhaust note.

Removes Factory Catalytic Converters. This Kooks Y-Pipe eliminates your Chevy Silverado’s stock catalytic converters. This means that this Y-Pipe is not CARB Certified, and is not street-legal in California or any other state with similar emission standards.

Application. The Kooks 3 in. Off-Road Y-Pipe is compatible with 2014-2018 5.3L Chevrolet Silverado 1500s equipped with Kooks Long Tube Headers.

Fitment: Details

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Mid-Pipe
Installation Info
Will it fit my Silverado 1500?

    Customer Photos

      Questions & Answers (2)

      2 Top Rated Questions

      does kooks or other brand offer y pipe to connect to stock manifolds? with or without cats ? my stock y pipe has 3 cats . would it help to eliminate 3rd cat ? has o2 sensors in front and behind front 2 cats . or eliminate all 3 cats? 2018 5.3 silverado

      • At this time we do not offer any Y pipes that connect to the stock manifolds. Horsepower gains removing the cats have been shown to be very minimal on stock and lightly modified Silverados, typically netting 2-5hp. Heavily modified and supercharged Silverados due tend to get a much better benefit from cat removal.

      Helpful (1)

      On these y pipes. They do have the spots to put the O2 sensors back in?

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