Maximum Cooling. Seamless OE Fitment. Built for Big Power.

Designed for serious B58 builds, the do88 MERA Charge Cooler Manifold addresses the factory system’s biggest limitations — heat soak, airflow restriction, and plastic failure under high boost. Engineered with a motorsport-grade Garrett core, cast aluminum end tanks, and full compatibility with port injection and meth/nitrous systems, this manifold is your path to reliable power.

🔥 Performance Highlights:

• Garrett bar & plate 102mm thick water-to-air intercooler core (vs. 6-row OE core)

• 47% increase in airflow over stock (874 CFM @ 0.1 bar drop vs. 595 CFM)

• Reduces IATs by 18°C (23°C vs. OEM 41°C under same conditions)

• +18 hp midrange, +28 Nm torque, and +5 hp peak gains (bootmod3 Stage 2+ tested)

🛠️ Key Features:

• Fully cast end tanks designed via CFD and 3D scanning for even airflow and coolant distribution

• Designed to fit under OEM engine cover — even with port injection fuel rail installed

• Integrated thermal barrier spacer with FKM silicone O-rings to insulate against heat soak

• Spin-on oil filter access retained — no need to remove the manifold for oil changes

• Plug-and-play installation with OE sensors and connections

• CNC-milled injector ports & included auxiliary fuel rail (AN-8 female)

• Injector blanking plugs included if port injection not used

💨 Meth/Nitrous Ready:

• Individual 1/8” NPT ports per runner for direct meth or nitrous injection

• 1/8” BSPT ports for coolant bleed or temp sensors (top-mounted)

• 3 x 1/8” NPT sensor pad ports built into the casting (plugs included)

📦 What’s Included:

• do88 MERA Charge Cooler Manifold

• Thermal barrier spacer w/ 12 custom FKM silicone O-rings

• Auxiliary port injection fuel rail (compatible with ID1050x or Bosch EV14 injectors)

• Sealing plugs for all optional ports (meth, fuel, vacuum, breather)

• Mounting brackets and hardware for OEM engine cover and harnesses

📌 Fitment:

• 2020+ Toyota GR Supra A90/A91 (B58 engine)

• Also compatible with other Gen 2 B58-equipped BMW models

• Compatible with most engine covers and OE fitment points

If you're pushing power and want OEM fitment with elite cooling — this is it.