Kooks 1-7/8in x 3in Header & Catted Connection Kit — Fits 2005-2006 Pontiac GTO Base

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SKU: KSH2412H420
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About Kooks Headers Kooks Headers engineers high-quality automotive parts and ...Read More

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Sale price$2,359.99 Regular price$2,861.55
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kooks Headers

Kooks Headers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kooks Headers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Maximize Your GTO's Power with Kooks Headers

Elevate the performance of your 2005-2006 Pontiac GTO Base model with the Kooks 1-7/8in x 3in Header and Catted GTO Connection Kit. This premium exhaust system is meticulously engineered to unlock substantial horsepower and torque gains by optimizing exhaust flow and reducing back pressure. Kooks Headers, a leader in high-performance exhaust for over 50 years, ensures that this system delivers both an aggressive sound and measurable power improvements.

Engineered for Dominance:

  • Optimized Tube Design: 1-7/8 inch primary tubes merge into 3-inch collectors for superior exhaust scavenging.
  • High-Quality Construction: Manufactured from durable stainless steel for longevity and resistance to corrosion.
  • Catted Connection Kit: Includes high-flow catalytic converters to maintain emissions compliance while maximizing performance.
  • Direct Fitment: Designed specifically for a precise, hassle-free installation on 2005-2006 Pontiac GTO Base models.
  • Race-Proven Performance: Built with Kooks' legendary racing heritage, guaranteeing top-tier quality and results.

Each Kooks system is handcrafted in the USA, reflecting a commitment to excellence that has made them a trusted name in motorsports. Upgrade your GTO's exhaust and experience a dramatic transformation in power and sound. Find your Kooks 2412H420 system at GGCRACING and get ready to dominate the road!

Vehicle Fitment

Years Make Model Trim
2005-2006 Pontiac GTO Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About Kooks Headers

Kooks Headers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kooks Headers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Maximize Your GTO's Power with Kooks Headers

Elevate the performance of your 2005-2006 Pontiac GTO Base model with the Kooks 1-7/8in x 3in Header and Catted GTO Connection Kit. This premium exhaust system is meticulously engineered to unlock substantial horsepower and torque gains by optimizing exhaust flow and reducing back pressure. Kooks Headers, a leader in high-performance exhaust for over 50 years, ensures that this system delivers both an aggressive sound and measurable power improvements.

Engineered for Dominance:

  • Optimized Tube Design: 1-7/8 inch primary tubes merge into 3-inch collectors for superior exhaust scavenging.
  • High-Quality Construction: Manufactured from durable stainless steel for longevity and resistance to corrosion.
  • Catted Connection Kit: Includes high-flow catalytic converters to maintain emissions compliance while maximizing performance.
  • Direct Fitment: Designed specifically for a precise, hassle-free installation on 2005-2006 Pontiac GTO Base models.
  • Race-Proven Performance: Built with Kooks' legendary racing heritage, guaranteeing top-tier quality and results.

Each Kooks system is handcrafted in the USA, reflecting a commitment to excellence that has made them a trusted name in motorsports. Upgrade your GTO's exhaust and experience a dramatic transformation in power and sound. Find your Kooks 2412H420 system at GGCRACING and get ready to dominate the road!

Vehicle Fitment

Years Make Model Trim
2005-2006 Pontiac GTO Base

Product Details

Product Description

About Kooks Headers

Kooks Headers engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Kooks Headers lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Maximize Your GTO's Power with Kooks Headers

Elevate the performance of your 2005-2006 Pontiac GTO Base model with the Kooks 1-7/8in x 3in Header and Catted GTO Connection Kit. This premium exhaust system is meticulously engineered to unlock substantial horsepower and torque gains by optimizing exhaust flow and reducing back pressure. Kooks Headers, a leader in high-performance exhaust for over 50 years, ensures that this system delivers both an aggressive sound and measurable power improvements.

Engineered for Dominance:

  • Optimized Tube Design: 1-7/8 inch primary tubes merge into 3-inch collectors for superior exhaust scavenging.
  • High-Quality Construction: Manufactured from durable stainless steel for longevity and resistance to corrosion.
  • Catted Connection Kit: Includes high-flow catalytic converters to maintain emissions compliance while maximizing performance.
  • Direct Fitment: Designed specifically for a precise, hassle-free installation on 2005-2006 Pontiac GTO Base models.
  • Race-Proven Performance: Built with Kooks' legendary racing heritage, guaranteeing top-tier quality and results.

Each Kooks system is handcrafted in the USA, reflecting a commitment to excellence that has made them a trusted name in motorsports. Upgrade your GTO's exhaust and experience a dramatic transformation in power and sound. Find your Kooks 2412H420 system at GGCRACING and get ready to dominate the road!

Vehicle Fitment

Years Make Model Trim
2005-2006 Pontiac GTO Base

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