Mishimoto 2006-2011 Honda Civic SI Manual Aluminum Radiator

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SKU: MISMMRAD-CIV-06SI
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Sale price$335.95 Regular price$370.00
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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 Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto Performance Aluminum Radiator for 2006-2011 Honda Civic SI

Keep your 8th generation Honda Civic SI running at optimal temperatures with the Mishimoto Performance Aluminum Radiator. Engineered specifically for the 2006-2011 Civic SI models, this radiator is the perfect solution for drivers seeking enhanced cooling performance for daily driving, autocross, or track use.

Maximize Engine Efficiency

A high-performance engine requires a high-performance cooling system. This Mishimoto radiator is designed to significantly improve heat dissipation, ensuring your engine operates cooler and more efficiently. Key features include:

  • Precision-engineered for a direct fit on 2006-2011 Honda Civic SI models.
  • Constructed from 100% brazed aluminum for superior durability and heat transfer.
  • Features a lightweight, two-row core design to maximize cooling surface area.
  • Polished end tanks contribute to a clean, high-performance aesthetic under the hood.
  • Backed by Mishimoto's renowned lifetime warranty for peace of mind.

Engineered for Performance and Reliability

The stock cooling system in the 2006-2011 Civic SI can struggle under aggressive driving conditions. The Mishimoto Performance Aluminum Radiator addresses this by providing a robust and efficient solution to manage heat effectively. This upgrade not only prevents costly overheating issues but also contributes to the longevity of your engine.

Complete Your Cooling System

For even greater cooling efficiency, consider pairing this radiator with the Mishimoto 2006-2011 Civic SI hose kit. Experience the difference superior cooling can make.

Get the ultimate cooling upgrade for your Civic SI at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2006-2011 Honda Civic DX
2006-2011 Honda Civic EX
2006-2011 Honda Civic GX
2006-2011 Honda Civic Hybrid
2006-2011 Honda Civic LX
2008 Honda Civic MUGEN Si
2009-2011 Honda Civic EX-L
2009-2011 Honda Civic Hybrid-L
2009-2011 Honda Civic LX-S

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto Performance Aluminum Radiator for 2006-2011 Honda Civic SI

Keep your 8th generation Honda Civic SI running at optimal temperatures with the Mishimoto Performance Aluminum Radiator. Engineered specifically for the 2006-2011 Civic SI models, this radiator is the perfect solution for drivers seeking enhanced cooling performance for daily driving, autocross, or track use.

Maximize Engine Efficiency

A high-performance engine requires a high-performance cooling system. This Mishimoto radiator is designed to significantly improve heat dissipation, ensuring your engine operates cooler and more efficiently. Key features include:

  • Precision-engineered for a direct fit on 2006-2011 Honda Civic SI models.
  • Constructed from 100% brazed aluminum for superior durability and heat transfer.
  • Features a lightweight, two-row core design to maximize cooling surface area.
  • Polished end tanks contribute to a clean, high-performance aesthetic under the hood.
  • Backed by Mishimoto's renowned lifetime warranty for peace of mind.

Engineered for Performance and Reliability

The stock cooling system in the 2006-2011 Civic SI can struggle under aggressive driving conditions. The Mishimoto Performance Aluminum Radiator addresses this by providing a robust and efficient solution to manage heat effectively. This upgrade not only prevents costly overheating issues but also contributes to the longevity of your engine.

Complete Your Cooling System

For even greater cooling efficiency, consider pairing this radiator with the Mishimoto 2006-2011 Civic SI hose kit. Experience the difference superior cooling can make.

Get the ultimate cooling upgrade for your Civic SI at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2006-2011 Honda Civic DX
2006-2011 Honda Civic EX
2006-2011 Honda Civic GX
2006-2011 Honda Civic Hybrid
2006-2011 Honda Civic LX
2008 Honda Civic MUGEN Si
2009-2011 Honda Civic EX-L
2009-2011 Honda Civic Hybrid-L
2009-2011 Honda Civic LX-S

Product Details

Product Description

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto Performance Aluminum Radiator for 2006-2011 Honda Civic SI

Keep your 8th generation Honda Civic SI running at optimal temperatures with the Mishimoto Performance Aluminum Radiator. Engineered specifically for the 2006-2011 Civic SI models, this radiator is the perfect solution for drivers seeking enhanced cooling performance for daily driving, autocross, or track use.

Maximize Engine Efficiency

A high-performance engine requires a high-performance cooling system. This Mishimoto radiator is designed to significantly improve heat dissipation, ensuring your engine operates cooler and more efficiently. Key features include:

  • Precision-engineered for a direct fit on 2006-2011 Honda Civic SI models.
  • Constructed from 100% brazed aluminum for superior durability and heat transfer.
  • Features a lightweight, two-row core design to maximize cooling surface area.
  • Polished end tanks contribute to a clean, high-performance aesthetic under the hood.
  • Backed by Mishimoto's renowned lifetime warranty for peace of mind.

Engineered for Performance and Reliability

The stock cooling system in the 2006-2011 Civic SI can struggle under aggressive driving conditions. The Mishimoto Performance Aluminum Radiator addresses this by providing a robust and efficient solution to manage heat effectively. This upgrade not only prevents costly overheating issues but also contributes to the longevity of your engine.

Complete Your Cooling System

For even greater cooling efficiency, consider pairing this radiator with the Mishimoto 2006-2011 Civic SI hose kit. Experience the difference superior cooling can make.

Get the ultimate cooling upgrade for your Civic SI at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2006-2011 Honda Civic DX
2006-2011 Honda Civic EX
2006-2011 Honda Civic GX
2006-2011 Honda Civic Hybrid
2006-2011 Honda Civic LX
2008 Honda Civic MUGEN Si
2009-2011 Honda Civic EX-L
2009-2011 Honda Civic Hybrid-L
2009-2011 Honda Civic LX-S

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