GESI G-Sport GEN2 400 CPSI EPA Compliant Substrate Only — 5in x 4in Up to 1,000HP

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SKU: GSP85500
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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 G-Sport

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

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Ultimate Substrate for Extreme Power

For the most demanding builds, the GESI G-Sport GEN2 400 CPSI Substrate is the ultimate choice. Rated for engines producing up to 1,000 horsepower, this substrate-only unit provides the necessary emission control for high-output track and street vehicles. With a larger 5-inch by 4-inch footprint, it offers increased surface area for filtration, ensuring that even at extreme power levels, your exhaust remains compliant with EPA standards.

Why Choose the GEN2 1,000HP Substrate?

  • Extreme Capacity: Engineered to support up to 1,000HP, making it ideal for big-turbo and high-boost builds.
  • GEN2 Durability: Advanced substrate matrix designed to resist thermal shock and vibration.
  • 400 CPSI Density: Optimal balance of emission cleaning and exhaust gas flow.
  • Customizable: Substrate-only design allows fabricators to create custom housings for unique exhaust setups.
  • EPA Compliant: Maintains legal compliance even on highly modified performance engines.

This substrate is built for those who refuse to compromise. Whether you are building a dedicated drag car that needs to stay street-legal or a high-end street machine, this component provides the reliability and performance you demand. The 5-inch by 4-inch size is specifically chosen to handle the massive exhaust volume produced by 1,000HP engines without creating a bottleneck. Ensure your high-performance build is both powerful and responsible with premium components from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About G-Sport

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

Watch in action

Ultimate Substrate for Extreme Power

For the most demanding builds, the GESI G-Sport GEN2 400 CPSI Substrate is the ultimate choice. Rated for engines producing up to 1,000 horsepower, this substrate-only unit provides the necessary emission control for high-output track and street vehicles. With a larger 5-inch by 4-inch footprint, it offers increased surface area for filtration, ensuring that even at extreme power levels, your exhaust remains compliant with EPA standards.

Why Choose the GEN2 1,000HP Substrate?

  • Extreme Capacity: Engineered to support up to 1,000HP, making it ideal for big-turbo and high-boost builds.
  • GEN2 Durability: Advanced substrate matrix designed to resist thermal shock and vibration.
  • 400 CPSI Density: Optimal balance of emission cleaning and exhaust gas flow.
  • Customizable: Substrate-only design allows fabricators to create custom housings for unique exhaust setups.
  • EPA Compliant: Maintains legal compliance even on highly modified performance engines.

This substrate is built for those who refuse to compromise. Whether you are building a dedicated drag car that needs to stay street-legal or a high-end street machine, this component provides the reliability and performance you demand. The 5-inch by 4-inch size is specifically chosen to handle the massive exhaust volume produced by 1,000HP engines without creating a bottleneck. Ensure your high-performance build is both powerful and responsible with premium components from GGCRACING.

Product Details

Product Description

About G-Sport

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

Watch in action

Ultimate Substrate for Extreme Power

For the most demanding builds, the GESI G-Sport GEN2 400 CPSI Substrate is the ultimate choice. Rated for engines producing up to 1,000 horsepower, this substrate-only unit provides the necessary emission control for high-output track and street vehicles. With a larger 5-inch by 4-inch footprint, it offers increased surface area for filtration, ensuring that even at extreme power levels, your exhaust remains compliant with EPA standards.

Why Choose the GEN2 1,000HP Substrate?

  • Extreme Capacity: Engineered to support up to 1,000HP, making it ideal for big-turbo and high-boost builds.
  • GEN2 Durability: Advanced substrate matrix designed to resist thermal shock and vibration.
  • 400 CPSI Density: Optimal balance of emission cleaning and exhaust gas flow.
  • Customizable: Substrate-only design allows fabricators to create custom housings for unique exhaust setups.
  • EPA Compliant: Maintains legal compliance even on highly modified performance engines.

This substrate is built for those who refuse to compromise. Whether you are building a dedicated drag car that needs to stay street-legal or a high-end street machine, this component provides the reliability and performance you demand. The 5-inch by 4-inch size is specifically chosen to handle the massive exhaust volume produced by 1,000HP engines without creating a bottleneck. Ensure your high-performance build is both powerful and responsible with premium components from GGCRACING.

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