RacingLab B58 Intake Manifold for BMW G-Series & Toyota GR Supra A90/A91

The Racing Lab High-Performance Charge Cooling Intake Manifold is engineered to improve thermal stability for modified B58 engines operating under increased boost and sustained load.

Key Features

• 120 mm bar-and-plate charge cooler core: Increased thermal mass helps resist heat soak during repeated high-load use.
• CNC-machined billet aluminium housing: Provides strength, pressure resistance and consistent internal geometry.
• Integrated thermal insulating spacer: Helps reduce heat transfer from the cylinder head.
• External port injection ready: Supports auxiliary fuelling strategies where required by the vehicle setup.
• Fuel rail included: Supplied with a dedicated top-feed auxiliary injection rail.

Test Data

Testing was performed on a BM3 Stage 2 Toyota GR Supra A90 at Sydney Motorsport Park in 28°C ambient conditions, together with Racing Lab engine-cooling upgrades. Recorded peak intake air temperature reduced from 69.0°C to 54.5°C, while peak oil temperature reduced from 126.8°C to 117.0°C. Results apply to the tested vehicle and configuration; individual results will vary.

Supported Vehicle Groups

• Toyota GR Supra A90/A91 – supported Gen-2 B58 applications
• BMW 2 Series – supported Gen-2 B58 applications
• BMW 3 Series – supported Gen-2 B58 applications
• BMW 4 Series – supported Gen-2 B58 applications

Installation & Setup

• Professional installation is required.
• Port injection hardware, injectors, lines and tuning are not stated as included unless shown in the selected option.
• Auxiliary fuelling must be configured and tuned by a qualified specialist.
• Confirm clearance and compatibility with existing engine modifications before ordering.

Need help? Contact Racing Lab with your VIN, model year, engine generation and current modification list.

The Racing Lab High-Performance Charge Cooling Intake Manifold is engineered to deliver consistent and reliable thermal control for B58 engines operating under increased boost and sustained load.

At the core of the system is a 120mm bar-and-plate charge cooler core, selected for its superior thermal capacity compared to traditional tube-and-fin designs. While tube-and-fin cores prioritise lightweight construction and rapid heat exchange, they are more prone to heat saturation during prolonged high-load operation. In contrast, the bar-and-plate construction provides greater thermal mass and improved resistance to heat soak, allowing intake air temperatures to remain lower and more stable during aggressive street driving and circuit use.

The intake manifold features a fully CNC-machined billet aluminium housing, delivering excellent structural strength, pressure resistance, and optimised internal airflow. An integrated thermal insulating spacer further reduces heat transfer from the cylinder head into the intake system, improving overall thermal efficiency.

The Racing Lab High-Performance Charge Cooling Intake Manifold is fully compatible with external port injection (PI) and is supplied as standard with a dedicated fuel rail for top-feed auxiliary injection. This allows direct integration of auxiliary injectors without additional fabrication, providing a clean and scalable fueling solution for modified setups.

Performance validation was conducted on a BM3 Stage 2 Toyota GR Supra A90 at Sydney Motorsport Park (SMP). The test vehicle was equipped with the Racing Lab High-Performance Charge Cooling Intake Manifold in conjunction with a High-Performance All-Aluminum Radiator and dual High-Performance Auxiliary Radiators. Testing was carried out at an ambient temperature of 28°C.

Back-to-back datalog results show a reduction in peak intake air temperatures from 69.0°C (factory configuration) to 54.5°C. In addition, peak oil temperatures under sustained circuit load were reduced from 126.8°C to 117.0°C, reflecting the overall effectiveness of the upgraded intake and engine cooling systems in managing thermal load during track operation.

Developed for performance-focused road and track use, the Racing Lab High-Performance Charge Cooling Intake Manifold provides improved thermal stability and enhanced reliability under sustained load.

Key Features

• 120mm Bar-and-Plate Charge Cooler Core
  High thermal mass design provides superior resistance to heat soak compared to traditional tube-and-fin cores, ensuring stable intake air temperatures under sustained load.
• Fully CNC-Machined Billet Aluminium Intake Manifold
  Precision-machined for maximum strength, pressure resistance, and optimised internal airflow, replacing the factory plastic intake manifold.
• Integrated Thermal Insulating Spacer
  Minimises heat transfer from the cylinder head into the intake system, reducing heat soak during prolonged operation.
• External Port Injection (PI) Ready
  Designed to support auxiliary fueling strategies for modified and ethanol-capable setups.
• Fuel Rail Supplied as Standard
  Includes a dedicated fuel rail for top-feed auxiliary port injection, allowing direct installation without additional fabrication.

Compatible Vehicles

• Toyota GR Supra A90 / A91 (2020 – Present) – Gen-2 B58
• BMW 2 Series (Gen-2 B58)
• BMW 3 Series (Gen-2 B58)
• BMW 4 Series (Gen-2 B58)

All Racing Lab performance parts are covered by a 1-year limited warranty against manufacturing defects and workmanship issues.

Every component is rigorously inspected to ensure quality and reliability, so you can upgrade your vehicle with confidence. If any issues arise, our support team is ready to assist with fast and hassle-free warranty claims.

We accept returns under the following strict conditions:

Restocking Fee: A 20% restocking fee (deducted from the product purchase price) applies to all returned items.

Item Condition: Returned items must show no signs of use, installation, or wear.