IAG Street Series Engine Mounts — 2002-2007 WRX / 2004+ STI
Upgraded Engine Mounts for Improved Drivetrain Stability
The IAG Street Series Engine Mounts for 2002-2007 WRX and 2004+ STI platforms feature 75A durometer bushings in cold-rolled cadmium-plated steel brackets with 6061 billet aluminum anodized carriers. They provide a noticeable improvement in engine stability and responsiveness over worn OEM rubber mounts while maintaining a street-acceptable NVH level. Sold as a pair with hardware.
DETAILS
- 75A durometer bushings — street-optimized compliance
- Cold-rolled cadmium-plated steel brackets and pins
- 6061 billet aluminum anodized carriers
- Requires use of OEM engine mounting plates
- Sold as a pair — includes bushings and hardware
- Bushing stiffness can be changed to 90A Competition or softer 55A spec
- Fits: 2002-2007 WRX / 2004+ STI
75A Bushings for Street Use
The 75A durometer bushing spec provides noticeably better engine stability than a worn OEM mount without the constant NVH of the 90A Competition spec. For a street-driven WRX or STI that sees occasional performance driving, 75A is the recommended starting point.
Construction Details
Cold-rolled cadmium-plated steel brackets provide corrosion resistance. The 6061 billet aluminum carriers are anodized for durability. The modular bushing design allows stiffness upgrades without replacing the entire mount body.
OEM Mounting Plates Required
These mounts require the use of OEM engine mounting plates. Ensure your mounting plates are in good condition before installation.
Why Choose IAG Performance
IAG Performance has been building Subaru-specific engine and drivetrain components since 2001, and in that time they have become the standard by which serious Subaru builds are measured. Based in Westminster, Maryland, IAG designs, machines, and assembles their products in-house using Haas CNC equipment and their own engineering team. Their catalog spans everything from short blocks and long blocks rated to 1150 BHP all the way down to the fuel system, oiling, and drivetrain hardware that keeps modified Subarus running reliably for years. Every IAG product exists because a problem needed a better solution than what was available — and the engineering shows.
The RallySport Take
The IAG Street Series engine mounts are the right upgrade for any 02-07 WRX or STI that has accumulated mileage on the OEM rubber mounts. Improved engine stability, better power transfer feel, and more responsive drivetrain behavior — all with a street-appropriate NVH level.
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2021 | Subaru | Impreza | STI |





Reviews
There are no reviews yet.