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Kooks 2.5 in. Off-Road Y-Pipe (09-10 5.4L; 2010 5.4L Raptor w/ Long Tube Headers)

Market Price $713.79 You Save 12% ($82.12)
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$631.67

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  • Item T527437
  • MPN# 13503100

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Features & Details

  • Increases Exhaust Flow for More Power
  • Adds Aggressive Exhaust Note
  • Off-Road Y-Pipe Design
  • Deletes Catalytic Converters
  • 2.50" Mandrel-Bent Tubing
  • 304 Stainless Steel Construction
  • Intended for Off-Road or Track Use Only
  • Designed for use with Kooks Long Tube Headers
  • Fits 2009-2010 5.4L F-150 and 2010 Raptor
Increase Performance. Eliminate those power robbing factory catalytic converters with a Kooks Off-road Y-pipe to add even more horsepower and torque to the rear wheels of your 5.4L powered F-150. This Kooks Y-pipe is specifically designed to be used with Kooks Long Tube Headers.

Aggressive Exhaust Note. This free flowing Kooks y-pipe for the 5.4L F-150 not only increases power, but it also adds a crisp aggressive exhaust note to the sound of your exhaust with its "Y" crossover pipe design.

Deletes Factory Cats. Kook's designed their Off-Road Y-Pipe to eliminate your F-150's restrictive stock catalytic converters. Because of this, this Y-pipe is not CARB certified, therefore it is not legal for use in California or any other state adopting California emission standards. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

Quality Construction. Manufactured from 2.5 in. mandrel-bent 304 stainless steel tubing, this Kooks Y-pipe features a merged "Y" crossover for superior exhaust flow. Its precision construction guarantees an easy installation and excellent fitment.

Application. This Kooks Off Road Y-Pipe is specifically designed to fit the 2009 to 2010 5.4L F-150 and 5.4L Raptor equipped with Kooks Long Tube Headers installed.

Technical Note: This Kooks product is intended for off road use, and is not legal for use in emission restrictive states.

Fitment: 2009 2010 Details

What's in the Box
  • (1) Driver Side Down-Pipe
  • (1) Passenger Side Down-Pipe
  • (1) Y-Pipe
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Y-Pipe Type Headers Required: Kooks Long Tube
Piping Material: 304 Stainless Steel Piping Size: 2.5 in.
Catalytic Converter: Deleted, Off-Road Use Only Fitment: 2009-2010 5.4L, Raptor
Will it fit my F-150?

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Afternoon

  • Performance Gain 3 3
  • Fit 5 5



  • 5/5

    Installation Time: Afternoon

    June 03, 2016

    Best I've ever used

    I'm on and off the track and I use my truck evry day for work ETC... But I still love to hear the truck roar when I stomp on it so this is the best one I've used yet..

    backyardInbread

    Year: 2007 Submodel: Base

    Helpful (1)

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