Mishimoto Performance Auxiliary Radiators (Pair) — 2021+ BMW G8X M3/M4

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SKU: MISMMRAD-G80-21A
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Sale price$587.95 Regular price$647.00
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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 Auxiliary Radiators for 2021+ BMW G8X M3/M4

Maintain optimal engine temperatures in your high-performance 2021+ BMW G8X M2, M3, or M4 with the Mishimoto Performance Auxiliary Radiators. Sold as a pair, these radiators are essential for drivers who demand consistent performance, whether on the street or the track.

Key Features and Benefits:

  • Enhanced Heat Dissipation: Featuring full-aluminum end tanks TIG-welded to custom-engineered cores, these radiators offer superior heat dissipation.
  • Increased Cooling Performance: Boasts increased fluid capacity and a 25% larger core volume compared to stock, ensuring effective temperature regulation for both stock and modified vehicles.
  • Durable Construction: Built with robust aluminum and strutted tubes for added reinforcement against vibration and impacts, ensuring long-lasting reliability.
  • Vehicle Specific Fitment: Designed for a precise fit on 2023-2024 BMW M2 Base, 2021-2024 BMW M3 (Base, Competition, Competition xDrive, CS), and 2021-2024 BMW M4 (Base, Competition, Competition xDrive, CSL) models.
  • Optional Protection: Steel stone guards are available separately for added protection against road debris.

The Mishimoto Performance Auxiliary Radiators are a critical upgrade for any G8X owner looking to prevent heat soak and maintain peak engine performance. Experience the difference that superior cooling makes. Protect your investment and enhance your driving experience with Mishimoto.

Vehicle Fitment

Years Make Model Trim
2023-2024 BMW M2 Base
2021-2024 BMW M3 Base
2021-2024 BMW M3 Competition
2022-2024 BMW M3 Competition xDrive
2024 BMW M3 CS
2021-2024 BMW M4 Base
2021-2024 BMW M4 Competition
2021-2024 BMW M4 Competition xDrive
2023-2024 BMW M4 CSL

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 Auxiliary Radiators for 2021+ BMW G8X M3/M4

Maintain optimal engine temperatures in your high-performance 2021+ BMW G8X M2, M3, or M4 with the Mishimoto Performance Auxiliary Radiators. Sold as a pair, these radiators are essential for drivers who demand consistent performance, whether on the street or the track.

Key Features and Benefits:

  • Enhanced Heat Dissipation: Featuring full-aluminum end tanks TIG-welded to custom-engineered cores, these radiators offer superior heat dissipation.
  • Increased Cooling Performance: Boasts increased fluid capacity and a 25% larger core volume compared to stock, ensuring effective temperature regulation for both stock and modified vehicles.
  • Durable Construction: Built with robust aluminum and strutted tubes for added reinforcement against vibration and impacts, ensuring long-lasting reliability.
  • Vehicle Specific Fitment: Designed for a precise fit on 2023-2024 BMW M2 Base, 2021-2024 BMW M3 (Base, Competition, Competition xDrive, CS), and 2021-2024 BMW M4 (Base, Competition, Competition xDrive, CSL) models.
  • Optional Protection: Steel stone guards are available separately for added protection against road debris.

The Mishimoto Performance Auxiliary Radiators are a critical upgrade for any G8X owner looking to prevent heat soak and maintain peak engine performance. Experience the difference that superior cooling makes. Protect your investment and enhance your driving experience with Mishimoto.

Vehicle Fitment

Years Make Model Trim
2023-2024 BMW M2 Base
2021-2024 BMW M3 Base
2021-2024 BMW M3 Competition
2022-2024 BMW M3 Competition xDrive
2024 BMW M3 CS
2021-2024 BMW M4 Base
2021-2024 BMW M4 Competition
2021-2024 BMW M4 Competition xDrive
2023-2024 BMW M4 CSL

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 Auxiliary Radiators for 2021+ BMW G8X M3/M4

Maintain optimal engine temperatures in your high-performance 2021+ BMW G8X M2, M3, or M4 with the Mishimoto Performance Auxiliary Radiators. Sold as a pair, these radiators are essential for drivers who demand consistent performance, whether on the street or the track.

Key Features and Benefits:

  • Enhanced Heat Dissipation: Featuring full-aluminum end tanks TIG-welded to custom-engineered cores, these radiators offer superior heat dissipation.
  • Increased Cooling Performance: Boasts increased fluid capacity and a 25% larger core volume compared to stock, ensuring effective temperature regulation for both stock and modified vehicles.
  • Durable Construction: Built with robust aluminum and strutted tubes for added reinforcement against vibration and impacts, ensuring long-lasting reliability.
  • Vehicle Specific Fitment: Designed for a precise fit on 2023-2024 BMW M2 Base, 2021-2024 BMW M3 (Base, Competition, Competition xDrive, CS), and 2021-2024 BMW M4 (Base, Competition, Competition xDrive, CSL) models.
  • Optional Protection: Steel stone guards are available separately for added protection against road debris.

The Mishimoto Performance Auxiliary Radiators are a critical upgrade for any G8X owner looking to prevent heat soak and maintain peak engine performance. Experience the difference that superior cooling makes. Protect your investment and enhance your driving experience with Mishimoto.

Vehicle Fitment

Years Make Model Trim
2023-2024 BMW M2 Base
2021-2024 BMW M3 Base
2021-2024 BMW M3 Competition
2022-2024 BMW M3 Competition xDrive
2024 BMW M3 CS
2021-2024 BMW M4 Base
2021-2024 BMW M4 Competition
2021-2024 BMW M4 Competition xDrive
2023-2024 BMW M4 CSL

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