A2017 Solid Transmission Mount - 2002-2026 Subaru WRX / 2004-2021 STI
This solid transmission mount is designed for Subaru WRX and STI models and is manufactured in-house by SPAN Racing Technology in Saitama, Japan. CNC machined from high-strength A2017 aluminum, it provides a rigid connection between the transmission and chassis for improved drivetrain control and response.
Engineered for performance and motorsport applications, this mount eliminates the flex found in factory rubber mounts, delivering more precise power transfer and shifting feel.
Key Features
A2017 aluminum construction
CNC machined from high-strength A2017 aluminum alloy (duralumin) for excellent rigidity and lightweight performance
Solid mount design
Eliminates movement and flex associated with factory rubber transmission mounts
Precision CNC machining
Ensures accurate fitment and consistent quality
Improved drivetrain response
Enhances shift feel, throttle response, and drivetrain stability under load
Motorsport-focused design
Ideal for track, rally, and high-performance applications
Design & Function
This transmission mount is purpose-built to replace the factory rubber mount with a solid aluminum solution.
By removing compliance from the drivetrain mounting system, it minimizes transmission movement during acceleration, deceleration, and gear changes. This results in more direct power delivery, improved shift precision, and better overall control of the drivetrain.
Designed for serious performance use, it prioritizes rigidity and responsiveness over comfort.
Installation
Direct replacement for factory transmission mount.
Professional installation is recommended.
Depending on vehicle condition and setup, minor adjustments may be required during installation.
Fitment
Subaru WRX (2002–2026)
Subaru WRX STI (2004–2021)
Notes
Significant increase in vibration, noise, and harshness (NVH) compared to factory mounts
Not recommended for street comfort-focused vehicles
For off-road and motorsport use only
Included
1x Solid Transmission Mount
To International Customers
International shipping costs, customs duties, and import taxes are not included in the item price.
We strongly recommend contacting us for a manual shipping quote before completing your checkout.
Please note that this product is CNC machined. Minor surface marks or variations may be present due to the manufacturing process.
Some items may be made to order. Please contact us in advance to confirm availability and lead time.
SPAN Racing Technology
info@span-racing.com
