ARP 203-4705 Pro Series Head Stud Kit for B58 3.0L Supra/BMW

Vehicle Fitment

• 2020-present Toyota GR Supra A90/A91 with B58 3.0L turbo inline-6; various BMW models using B58 3.0L (e.g., M340i, Z4 M40i, etc.)

Features

• ARP Pro Series head stud kit engineered for B58 3.0L turbo engines
• Constructed from ARP2000 alloy for high strength and fatigue resistance
• Cold-forged, heat-treated, and thread-rolled for reliable durability
• 12-point nuts for secure torque and easy access
• Centerless-ground studs ensure precise alignment and optimal sealing
• Black oxide finish enhances corrosion protection
• Includes hardened, parallel-ground washers for even load distribution

Specifications

• Material: ARP2000 alloy
• Head style: 12-point; Finish: black oxide
• Stud design ensures consistent preload and sealing for high-boost engines
• Washers: hardened and parallel-ground
• Socket interface: compatible with 12-point tool - enabling accurate torque

Included Components

• 10x ARP2000 head studs
• 10x 12-point nuts
• 10x hardened, parallel-ground washers

Product Description

The ARP 203-4705 Pro Series Head Stud Kit is precision-engineered for modern turbocharged B58 3.0-liter inline-6 engines found in Toyota GR Supra A90/A91 and various BMW models (e.g., M340i, Z4 M40i). Crafted from resilient ARP2000 alloy, these studs are cold-forged, heat-treated, and thread-rolled to deliver exceptional strength and fatigue endurance suitable for high-performance boosting applications.

With 12-point nuts and black oxide finish, the kit enhances installation ease and corrosion protection, while hardened washers ensure uniform load distribution. Designed for impeccable head-to-block sealing under demanding conditions, this kit is a reliable choice for performance builds and high-boost setups. Fitment confirmed for current B58 applications; **2025 coverage is unconfirmed at time of listing**.