BMW G29 Z4 M40i & Toyota GR Supra B58 Stage 3 Hardware Package

This Stage 3 Hardware Package has been carefully curated for BMW Z4 M40i and Toyota GR Supra models running the B58 engine, delivering exceptional value while providing the hardware foundation required to achieve 600+ BHP with suitable custom remapping. Designed specifically for OPF-equipped vehicles, this comprehensive kit addresses airflow, exhaust flow, turbocharging, and charge air cooling—ensuring consistent, reliable performance at significantly increased power levels. Every component has been selected for its quality, precise fitment, and proven capability on high-output B58 builds.

Key Features

• Complete Stage 3 hardware solution for B58-powered platforms

• Proven capability to support 600+ BHP with custom ECU calibration

• Upgraded turbo, intake, exhaust, and cooling hardware

• High-quality components from industry-leading manufacturers

• Designed specifically for OPF-equipped vehicles

What’s Included

PURE Turbos PURE800 Stage 2 Cast Turbo
The PURE800 Stage 2 Cast Turbo is a high-performance turbocharger upgrade engineered to unlock serious power while maintaining excellent reliability. Featuring a billet compressor wheel, upgraded turbine wheel, and reinforced bearing housing, this turbo delivers improved airflow, faster spool, and exceptional durability under high boost. The included high-flow 3D-printed inlet further reduces restriction and enhances throttle response. Each unit is VSR balanced for smooth operation and long-term reliability, supplied in a new aftermarket housing with no core exchange required.

MST Performance Intake System
The MST intake system increases airflow to the turbocharger via a large 4" intake pipe and performance dry nanofibre air filter, paired with a laser-cut heat shield finished in textured black powder coat. Retaining OEM mounting points, this intake improves throttle response and delivers a more pronounced induction sound. Dyno testing on the B58 platform has shown gains of up to 12–14 bhp, making it an ideal supporting upgrade for higher-output turbo setups.

Scorpion Non-Resonated OPF Delete Exhaust Midpipe
Manufactured from high-quality stainless steel, the Scorpion OPF delete midpipe features a 76mm diameter design and reduces overall exhaust restriction by bypassing the factory OPF. Weighing approximately 1.7kg less than the OEM midpipe, it improves exhaust flow and sharpens exhaust character. OPF-delete cables or appropriate engine software are required.

Scorpion B58 De-Cat Downpipe – 5" Diameter
The Scorpion 5" catless stainless steel downpipe significantly reduces exhaust back pressure, allowing the upgraded turbocharger to operate more efficiently at higher power levels. This downpipe is a critical component for Stage 3 B58 builds targeting 600+ BHP.

CSF B58 Gen 2 High-Performance Heat Exchanger with Rock Guard
High-output B58 engines are prone to rapid heat soak, particularly when upgraded with larger turbos. The CSF high-performance heat exchanger addresses this limitation with an advanced all-aluminium core design, improving heat dissipation and intake air temperature stability under sustained load. Featuring CSF’s proprietary core technology, CNC-machined brackets, and an included rock guard, this upgrade ensures consistent performance during spirited driving.

Fitment Notes

• Designed for OPF-equipped vehicles only

• Custom ECU remapping is required

• OPF and catalyst-related fault codes must be coded out or addressed via tuning

• Exhaust and emissions components are modified

Compatibility

• BMW Z4 M40i (G29) – B58 engine

• Toyota GR Supra (A90) – B58 engine

Important Notice

This Stage 3 Hardware Package modifies factory emissions control components and is intended for off-road use only.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

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