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Kooks 1-7/8 in. x 3.5 in. Stainless Steel Long Tube Headers (96-04 Cobra, Mach 1)

Market Price $1,416.99 You Save 12% ($163.23)
Our Price

$1,253.76 (kit)

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  • Item 398899
  • MPN# 11222450

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Features & Details

  • Boosts HP & Torque
  • Classic Kooks Exhaust Sound
  • Long Tube Headers
  • Deletes Factory Cats
  • Does Not Fit Kooks X-Pipe
  • 1-7/8-Inch Inlet, 3.5-Inch Collector
  • CNC Mandrel-Bent Build
  • High-Strength Stainless Steel
  • For Off-Road Only
  • Calibration Needed
  • Off-Road Use Only, No CARB Compliance
  • Fit 1996–2004 Mustang Mach 1 Cobra Models
Highest Power Gains. With more than 50 years’ experience designing and building competitive race headers, Kooks has created its 1-7/8” x 3.5” Headers to give Cobra and Mach 1 Mustangs superior horsepower gains to the competition. They look superb, perform great and sound amazing.

Creates the Classic Kooks Sound. These 3.5” Kooks Race Headers must be used with Kooks own Connection Pipes but do not fit Kooks X-Pipes. Even with a catted mid-pipe from Kooks, you get the big, aggressive engine roar.

Deletes Factory Cats. Kooks Race Headers result in the factory cats being deleted. Kooks sells both non-cat and catted mid pipes that create bigger exhaust flow than factory exhausts.

Traditional Stainless Steel Kooks Build. Kooks crafts its 1-7/8” x 3.5” Race Headers using CNC mandrel-bent stainless steel. The finish is naturally beautiful and durable.

Tuning Needed. These Kooks Race Headers are the perfect basis for performance tuning. After installation, calibration is needed to allow for maximum performance.

No CARB Rules Compliance. The 1-7/8” x 3.5” Race Headers don’t meet CARB regulations and must not be used in the state of California or other states with the same emissions rules. Only use them off public highways.

Application. These 1-7/8” x 3.5” Kooks Headers suit 1996–2004 Mach 1 & Cobra models. No smog connections are included for 1996–1998 models. An aftermarket steering shaft is recommended. EGR is not included but is available.

Fitment: 1996 1997 1998 1999 2001 2003 2004 Details

What's in the Box
  • (2) Kooks Header
  • (2) Header Gasket
  • O2 Extensions
  • Installation Hardware
Installation Info
Will it fit my Mustang?
  • Mach 1 - 03, 04
  • Cobra - 96, 97, 98, 99, 01, 03, 04

Will NOT fit with a Kooks X-Pipe, the Headers features a Slip-Fit Collector not a Ball and Socket Collector.

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