IAG Competition Series 6 Speed Transmission Mount

2015-2021 Subaru STI

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SKU: IAG-DRV-2110We price match!

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The 6-Speed Transmission Mount secures the transmission on the Subaru STI under high-power use. 
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IAG Competition Series 6 Speed Transmission Mount

Transmission Mount Specs:

  • Comp series red 90A durometer bushings
  • Stiffer than the Group N mount
  • The body is made from CNC'd solid billet aluminum materials
  • Features a unique flushed hardware design that eliminates the need to take the mount apart to install it on the vehicle
  • The mount stiffness can also be changed by installing a softer 75A bushing kit
  • Includes 4 Allen socket head mounting screws



Your factory transmission mount is a wear and tear item and will become weak over time and mileage. The problem can certainly accelerate once you either perform modifications that can increase the power and the torque, or if you participate in track events where your vehicle will experience constant movement. 

The IAG Competition Series 6-Speed Transmission Mount features some of the strongest construction available for a transmission mount. The body is solid billet aluminum that is paired with 90A durometer bushings that make this stiffer than the Group N mount. However, if that is too stiff you swap out the bushings for softer 75A durometer bushings (not included). 

This mount is ideal for those who are making more power, more boost, and certainly more torque as the movement and the pitch will increase with modifications. It is also recommended for those who like to participate in motorsports whether it be autocross, drag racing, or road race events. 


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