Manley Performance H-Tuff Connecting Rod Set 2015-2021 WRX | 750 HP Rating | H-Beam Connecting Rods
Overview
The Manley Performance H-Tuff Connecting Rod Set for 2015-2021 Subaru WRX models is engineered for enthusiasts and builders seeking durable, high-strength internal engine components capable of supporting elevated power levels. These H-Beam rods are designed to replace the factory rods with a robust upgrade that withstands the rigors of high-boost and high-RPM applications, making them ideal for turbocharged builds pushing up to approximately 750 horsepower.
Manley’s H-Tuff series is crafted with the same precision and quality control standards as their premium Sportsmaster® and Pro Series rods but offers an economical solution without compromising reliability. Manufactured from 4340 chromoly steel and finished to exacting tolerances, these rods ensure consistent performance and durability. The attention to detail extends to every aspect of the rod, including final hone size, thread detail, and straightness, delivering a product that meets the demanding needs of Subaru engine builders.
For Subaru WRX owners, upgrading to Manley’s H-Tuff rods means enhanced engine strength and reliability under increased power and boost pressures. The 3/8" ARP 2000 rod bolts provide excellent clamping force, and the option to customize bolt material allows builders to tailor the rods to their specific performance goals. This connecting rod set is a critical component for anyone looking to build a reliable, high-output WRX engine that can handle aggressive tuning and track use.
Features & Specifications
This Manley Performance H-Tuff Connecting Rod Set is engineered specifically for 2015-2021 Subaru WRX platforms and features a 5.090-inch center-to-center length. Constructed from 4340 chromoly steel, it delivers exceptional strength and durability for Subaru enthusiasts seeking a high-performance, reliable connecting rod upgrade capable of supporting up to 750 horsepower.
-
Brand: Manley Performance
-
Product: H-Tuff Connecting Rod Set
-
Part Number: 15084-4
-
Fitment: 2015-2021 Subaru WRX
-
Material: 4340 Chromoly Steel
-
Finish: Precision machined, honed
-
Construction: Forged H-Beam
-
Origin: Not specified
-
Center To Center Length: 5.090 in.
-
Big End Bore: 2.087 in.
-
Pin Bore: 0.8671 in. (22mm Pin)
-
Rod Bolt Material: ARP 2000 (3/8" bolts)
-
Approximate HP Rating: 750 HP
-
Rod Quantity: Set of 4
-
Average Gram Weight: 605 grams
Key Benefits
-
Performance: Supports up to 750 horsepower, enabling high-boost and high-RPM builds for the WRX platform.
-
Durability: Forged 4340 chromoly steel construction ensures exceptional strength and resistance to fatigue under demanding conditions.
-
Fitment: Precision-machined to exacting tolerances for a direct fit on 2015-2021 WRX engines, ensuring reliable installation and operation.
-
Quality: Manufactured with the same standards as Manley’s premium rod lines, offering a balance of performance and value.
-
Customization: Flexible bolt options with ARP 2000 hardware provide strong clamping force and allow tailoring to specific build requirements.
-
Weight: Average rod weight of 605 grams helps maintain engine balance and responsiveness.
What's Included
- 4× Manley Performance H-Tuff H-Beam Connecting Rods
- 3/8" ARP 2000 Rod Bolts installed
- Installation instructions recommended (not included)
Installation & Compatibility
Installation of the Manley H-Tuff Connecting Rod Set requires engine disassembly and precision assembly techniques, making professional installation highly recommended. Proper torque specifications and rod bolt stretch measurements are critical to ensure reliability. No special modifications are required for fitment on 2015-2021 Subaru WRX engines, but balancing and blueprinting the rotating assembly is advised for optimal performance. This upgrade pairs well with other forged internals and supporting modifications for high-power builds.
-
Professional Installation: Recommended
-
Modifications Required: None; direct fit replacement
-
Verify Compatibility: Confirm fitment for your specific WRX model year and engine variant
Shop with confidence at Subimods—your Subaru parts specialists.
