HKS Competition Downpipe for Purpose-Built Race Cars — Off-Road Use Only

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SKU: HKS3306-SN001
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Sale price$709.01 Regular price$710.00
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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 HKS

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

Watch in action

Unleash Track Performance with HKS Competition Downpipes

The HKS Competition Downpipe is engineered for one purpose: maximum power delivery on the track. Designed exclusively for purpose-built race cars, this component eliminates restrictive factory emissions equipment to optimize exhaust gas flow directly from the turbocharger. This is a critical upgrade for professional racers and dedicated track enthusiasts looking to extract every ounce of performance from their engine setup.

Technical Specifications

  • High-flow design for maximum turbo efficiency
  • Constructed for high-heat, high-stress racing environments
  • Precision-engineered for optimal exhaust scavenging
  • Reduces turbo lag and increases throttle response
  • Strictly for off-road, competition use only

By streamlining the exhaust path, the HKS downpipe significantly reduces backpressure, allowing your turbocharger to spool faster and more efficiently. This results in a broader power band and increased peak horsepower. Please note that this part is intended solely for use on purpose-built race vehicles and is not for use on motor vehicles driven on public roads. Installation of this component may require professional tuning to ensure the engine management system is calibrated correctly for the increased airflow. When you demand the absolute best in racing hardware, HKS delivers the reliability and performance required to stay ahead of the competition. Enhance your track vehicle's potential with professional-grade components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About HKS

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

Watch in action

Unleash Track Performance with HKS Competition Downpipes

The HKS Competition Downpipe is engineered for one purpose: maximum power delivery on the track. Designed exclusively for purpose-built race cars, this component eliminates restrictive factory emissions equipment to optimize exhaust gas flow directly from the turbocharger. This is a critical upgrade for professional racers and dedicated track enthusiasts looking to extract every ounce of performance from their engine setup.

Technical Specifications

  • High-flow design for maximum turbo efficiency
  • Constructed for high-heat, high-stress racing environments
  • Precision-engineered for optimal exhaust scavenging
  • Reduces turbo lag and increases throttle response
  • Strictly for off-road, competition use only

By streamlining the exhaust path, the HKS downpipe significantly reduces backpressure, allowing your turbocharger to spool faster and more efficiently. This results in a broader power band and increased peak horsepower. Please note that this part is intended solely for use on purpose-built race vehicles and is not for use on motor vehicles driven on public roads. Installation of this component may require professional tuning to ensure the engine management system is calibrated correctly for the increased airflow. When you demand the absolute best in racing hardware, HKS delivers the reliability and performance required to stay ahead of the competition. Enhance your track vehicle's potential with professional-grade components from GGCRACING.

Product Details

Product Description

About HKS

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

Watch in action

Unleash Track Performance with HKS Competition Downpipes

The HKS Competition Downpipe is engineered for one purpose: maximum power delivery on the track. Designed exclusively for purpose-built race cars, this component eliminates restrictive factory emissions equipment to optimize exhaust gas flow directly from the turbocharger. This is a critical upgrade for professional racers and dedicated track enthusiasts looking to extract every ounce of performance from their engine setup.

Technical Specifications

  • High-flow design for maximum turbo efficiency
  • Constructed for high-heat, high-stress racing environments
  • Precision-engineered for optimal exhaust scavenging
  • Reduces turbo lag and increases throttle response
  • Strictly for off-road, competition use only

By streamlining the exhaust path, the HKS downpipe significantly reduces backpressure, allowing your turbocharger to spool faster and more efficiently. This results in a broader power band and increased peak horsepower. Please note that this part is intended solely for use on purpose-built race vehicles and is not for use on motor vehicles driven on public roads. Installation of this component may require professional tuning to ensure the engine management system is calibrated correctly for the increased airflow. When you demand the absolute best in racing hardware, HKS delivers the reliability and performance required to stay ahead of the competition. Enhance your track vehicle's potential with professional-grade components from GGCRACING.

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