Manley Performance Turbo Tuff I Beam Connecting Rods
2013–2020 Subaru BRZ / 2013–2016 Scion FR-S / 2017–2020 Toyota 86
14431-4
Overview:
The Manley Performance Turbo Tuff I Beam Connecting Rod Set is engineered for enthusiasts who demand exceptional strength and reliability from their engine components. Designed specifically for the Subaru BRZ, Scion FR-S, and Toyota 86 models within the specified years, these rods are ideal for those upgrading to forced induction or pushing their engines beyond stock limits.
Forged from premium 4130 aircraft-quality vacuum degassed steel, these connecting rods offer superior durability and toughness to withstand high horsepower and torque levels. Whether you’re building a high-performance street car or a track-focused machine, these rods provide the confidence and strength needed to handle increased power safely.
Key Features:
Manley Performance Turbo Tuff I Beam Connecting Rods deliver a combination of advanced materials and precision engineering to support your engine’s performance goals. Key features include:
- Forged from 4130 aircraft-quality vacuum degassed steel for maximum strength and fatigue resistance
- I-beam design optimized for high load capacity and reduced weight
- Includes 3/8” ARP 2000 fasteners for secure, reliable rod bolt retention under extreme conditions
- Engineered specifically for Subaru BRZ (2013–2020), Scion FR-S (2013–2016), and Toyota 86 (2017–2020) applications
- Ideal for forced induction setups, including turbocharged and supercharged engines
- Precision machined for exact fitment and balanced for smooth engine operation
- Designed to handle the increased stresses of high-performance builds and aggressive driving
Construction & Design:
These connecting rods are crafted using a vacuum degassing process that removes impurities from the 4130 steel, resulting in a material with exceptional strength and consistency. The I-beam shape is chosen for its balance of rigidity and weight savings, providing a robust yet lightweight component that reduces reciprocating mass.
Manley’s manufacturing process ensures tight tolerances and precise machining, which contributes to improved engine balance and durability. The included ARP 2000 fasteners are known for their high tensile strength, ensuring the rods remain securely fastened even under extreme boost and RPM conditions.
Installation & Fitment:
The Manley Turbo Tuff I Beam Connecting Rods are designed as direct replacements for the factory rods in the specified Subaru BRZ, Scion FR-S, and Toyota 86 models. Installation requires engine disassembly and professional machining or assembly experience is recommended to ensure proper fitment and clearances.
These rods are intended for high-performance builds and may require professional balancing and tuning to optimize engine reliability and performance. No modifications to the engine block or crankshaft are typically necessary when installing these rods, but always consult a professional engine builder for best results.
What's Included:
- Set of four forged 4130 I-beam connecting rods
- 3/8” ARP 2000 rod bolts for each rod
Ideal For:
- Enthusiasts upgrading to forced induction on Subaru BRZ, Scion FR-S, or Toyota 86
- High-performance street and track builds requiring durable rotating assembly components
- Engine builders seeking reliable, strong connecting rods for increased horsepower and torque
- Drivers who demand long-lasting engine internals capable of handling aggressive tuning and driving styles
