Description
The Mishimoto MMHE-Z-23 Performance Heat Exchanger is purpose-built for the 2023+ Nissan Z (RZ34) chassis and its turbocharged 3.0L V6 VR30DDTT engine. This direct-fit cooling upgrade replaces the factory charge air cooler with a core that offers a 172 percent increase in core volume and a 39.4 percent increase in frontal surface area, giving the Z’s cooling system dramatically more capacity to shed heat under sustained load.
As a performance vehicle, the Nissan Z generates real heat at the track or on hard street pulls, and this Mishimoto cooling upgrade is engineered to keep pace. In Mishimoto’s rigorous heat soak testing, the heat exchanger produced outlet coolant temperatures 10 degrees cooler than the stock unit while also reducing pressure drop by 2 psi compared to the factory cooler. Lower restriction means the charge air cooling water pump works less hard, while the increased core volume and surface area translate to more consistent, repeatable cooling performance session after session. Built with 3003-aluminum construction and all-aluminum TIG-welded end tanks, this heat exchanger is designed to outlast the stock plastic crimped end tanks and endure countless heat cycles without failure.
Vehicle Applications
The Mishimoto MMHE-Z-23 heat exchanger is a direct fit for the 2023+ Nissan Z, requiring no other modifications for installation. Coverage spans the Nissan Z Performance and Nissan Z Sport trims from 2023 through 2025, the Nissan Z Nismo from 2024 through 2025, the Nissan Z Touring from 2023 through 2024, and the 2023 Nissan Z Proto Spec. It is engineered around the RZ34 chassis and VR30DDTT engine code, and it fits both automatic and manual transmission models.
Features
- Direct fit for 2023+ Nissan Z with no other modifications required
- 172 percent increase in core volume for significantly improved cooling capacity
- Dyno-proven 10 degree reduction in outlet temperatures over stock
- 39.4 percent increase in frontal surface area for improved heat transfer
- Reduced pressure drop of 2 psi for more efficient cooling and less wear on the coolant pump
- All-aluminum TIG-welded end tanks for added durability over stock plastic tanks
- Strategically positioned bleeder screw for easy removal of air with the bumper on
- Compatible with the stock stone guard for added protection from road debris
- Fits both automatic and manual transmission models
- Patent Number: D1,064,945 S
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMHE-Z-23
- Grade Type: Performance
- Material: 3003-Aluminum
- Inlet Diameter: 0.625 in
- Outlet Diameter: 0.625 in
- Core Height: 12.3 in
- Core Length: 17 in
- Core Thickness: 1.26 in
- Overall Height: 13.7 in
- Overall Length: 22.3 in
- Overall Width: 3.1 in
- Fluid Capacity: 0.32 gal
- Drain Plug Thread Size: M8X1.25
- CARB EO Number: D-759-20
- Engine Code: VR30DDTT
- Chassis Code: RZ34
- Includes: (1) Mishimoto Performance Heat Exchanger, Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles does the Mishimoto MMHE-Z-23 heat exchanger fit?
It is a direct fit for the 2023+ Nissan Z, covering the Nissan Z Performance and Sport trims (2023–2025), the Nissan Z Nismo (2024–2025), the Nissan Z Touring (2023–2024), and the 2023 Nissan Z Proto Spec. It is built for the RZ34 chassis and VR30DDTT engine and fits both automatic and manual transmission models.
How much cooler does this heat exchanger run compared to the stock unit?
In Mishimoto’s rigorous heat soak testing, this heat exchanger produced outlet coolant temperatures 10 degrees cooler than the stock cooler.
Does installation require any other modifications?
No. The Mishimoto 2023+ Nissan Z performance heat exchanger is a direct fit with no other modifications needed, and it includes a strategically positioned bleeder screw so air can be purged from the system with the bumper on.
What is the heat exchanger made of?
It is constructed from 3003-aluminum and features all-aluminum TIG-welded end tanks, designed to outlast the stock plastic crimped end tanks.
Does the Mishimoto heat exchanger work with the factory stone guard?
Yes, it is compatible with the stock stone guard, which helps protect the heat exchanger from road debris.
What warranty comes with this heat exchanger?
It includes the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
