Kooks Headers

Kooks 99-04 Ford Mustang GT / Cobra 2 1/2in In x 2 1/2in OEM Out Cat SS X Pipe Kooks HDR Req - KOOKSHEADERS11203240

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SKU:
KOOKSHEADERS11203240
MPN:
11203240
MSRP: $1,893.05
$1,703.74
— You save $189.31
Current Stock: 11

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Description

Will this X-pipe fit my car?
KSH Cat X-Pipe is designed for 1999-2004 Mustang models, confirming specific vehicle fitment is essential before installation.

How difficult is the installation process?
Professional installation is recommended for this X-pipe to ensure optimal performance and secure exhaust flow.

The KSH Cat X-Pipe for your 1999-2004 Mustang delivers optimized exhaust flow, achieving significant horsepower gains with its 2-1/2 inch catted X-Pipe design. This X-pipe maximizes exhaust scavenging for enhanced engine breathing and a more aggressive, race-inspired exhaust note. Trust Kooks Headers for a direct fitment solution that elevates your vehicle's performance.

What Owners Say

Owners and enthusiasts consistently praise Kooks headers and catted X-pipe systems for their excellent fitment and build quality, with particular appreciation for the ball-type connections at the X-pipe that simplify installation. The sound improvement alone is frequently cited as worth the investment, and those who've paired headers with other modifications report being extremely satisfied with the results. While the price point sits above $2,000 for a complete setup, buyers generally agree you get what you pay for in terms of quality and performance. The green catted option advertised as 90% code-free has proven reliable for most installations. Kooks has earned strong credibility among Corvette owners as a premium exhaust solution.

Key Features

  • 2-1/2 inch X-Pipe
  • 2-1/2 inch Catted X-Pipe
  • 1999-2004 Mustang
  • Requires Kooks Headers

Why Choose the KSH Cat X-Pipe

Delivers optimized exhaust flow for enhanced engine breathing and power.

Achieves a more aggressive, race-inspired exhaust note with catalytic converter efficiency.

Provides a direct fitment solution for your 1999-2004 Mustang.

Transforms your Mustang's exhaust system when paired with Kooks Headers for peak performance.

Who Is This For?

Track / Autocross — 8/10
Maximizes exhaust scavenging for significant horsepower gains.

Drag Racing — 8/10
Maximizes exhaust scavenging for significant horsepower gains.

Street Performance — 8/10
Maximizes exhaust scavenging for significant horsepower gains.

Racing Competition — 8/10
Maximizes exhaust scavenging for significant horsepower gains.

Engine Performance — 9/10
2.5 inch catted X-Pipe design maximizes exhaust scavenging.

Exhaust Note / Sound — 7/10
X-pipe design influences exhaust tone and flow.

Frequently Asked Questions

What is the horsepower gain from installing the KSH Cat X-Pipe?

Significant horsepower gains are achievable with the KSH Cat X-Pipe, maximizing exhaust scavenging for peak performance. This component scores a '9' for 'Engine Performance' in the usage matrix, confirming its impact. Transform your Mustang's exhaust system for enhanced power output.

What are the benefits of an X-pipe exhaust system?

An X-pipe exhaust system delivers optimized exhaust flow, enhancing engine breathing and power for a more aggressive, race-inspired sound. This system achieves a '7' for 'Exhaust Note / Sound' in the usage matrix. Experience a transformed exhaust note with efficient catalytic converter functionality.

Does the KSH Cat X-Pipe fit my 1999-2004 Mustang?

The KSH Cat X-Pipe is designed for direct fitment on your 1999-2004 Mustang. This benefit is explicitly stated within the product features and ensures a precise installation. Achieve a seamless upgrade for your specific vehicle model.

What is the installation difficulty for the KSH Cat X-Pipe?

Professional installation is recommended for the KSH Cat X-Pipe to ensure optimal performance and integration. This 'moderate' maintenance level reflects precise component alignment. Confirm fitment and installation with a qualified technician for confidence.

Important Notices

⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.

⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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