Mishimoto Heat Exchanger Nissan Z 2023-2025 | MMHE-Z-23

Upgrade the charge-air cooling system of your 2023+ Nissan Z with the Mishimoto Performance Heat Exchanger, MMHE-Z-23. Designed specifically for the VR30DDTT 3.0L twin-turbo V6, this direct-fit heat exchanger significantly increases cooling capacity while reducing restriction in the factory charge-air cooling system.

With a 172% increase in core volume and a 39.4% increase in frontal surface area, the Mishimoto heat exchanger is designed to remove more heat from the intercooler coolant and maintain more consistent temperatures during spirited and high-performance driving.

Product Features

• Direct-fit installation
• 172% increase in core volume
• 39.4% increase in frontal surface area
• Dyno-tested 10°F reduction in outlet coolant temperature
• Reduces pressure drop by approximately 2 psi
• All-aluminum construction
• TIG-welded end tanks
• Strategically positioned air bleeder
• Compatible with factory stone guard
• Fits automatic and manual transmission models
• Mishimoto Lifetime Warranty
• CARB EO: D-759-20

Performance Benefits

The heat exchanger is a critical part of the Nissan Z's air-to-water charge-air cooling system. During repeated pulls or high-load driving, the factory heat exchanger can become heat soaked, increasing charge-air temperatures and potentially reducing performance.

The MMHE-Z-23 increases the amount of coolant exposed to the heat exchanger core while providing more frontal surface area for heat transfer.

Benefits include:

• Lower intercooler coolant temperatures
• Improved resistantce to heat soak
• More consistent performance during repeated pulls
• Increased cooling capacity
• Reduced coolant-side restriction
• Less load on the charge-air cooling water pump
• Improved durability compared with the factory plastic end tanks

Mishimoto's testing showed a 10°F reduction in outlet coolant temperature compared with the stock heat exchanger.

Heavy-Duty Construction

The MMHE-Z-23 features all-aluminum TIG-welded end tanks, replacing the factory plastic crimped end-tank design with a more durable construction designed to withstand repeated heat cycles.

The factory stone guard remains compatible with the upgraded heat exchanger, helping protect the core from road debris.

Easy Air Bleeding

Mishimoto strategically positioned the air bleeder screw so the charge-air cooling system can be purged of trapped air without removing the front bumper. This simplifies installation and future cooling-system service.

Technical Specifications

• Part Number: MMHE-Z-23
• Core Length: 17 in.
• Core Height: 12.3 in.
• Core Thickness: 1.26 in.
• Overall Length: 22.3 in.
• Overall Height: 13.7 in.
• Fluid Capacity: 0.32 gal
• Rows: 37
• Inlet: 0.625 in.
• Outlet: 0.625 in.
• Drain Plug: M8 x 1.25
• Engine: V6 3.0L Turbo
• Engine Code: VR30DDTT
• Chassis: RZ34