Fitment Information
- Subaru BRZ (2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
- Toyota 86 (2017, 2018, 2019, 2020, 2021)
- Scion FR-S (2013, 2014, 2015, 2016)
Specs & Features
- Laser cut, CNC bent brackets ensure perfect fit
- Mild steel construction provides maximum stiffness
- Rigid design prevents unnecessary slop and tolerance stacking
- Durable DuPont powdercoat
- Legal in autocross classes that allow a strut tower bar but no other modification
- Installation in minutes with only a single tool
- A rigid bar will function with maximum stiffness, providing the best possible performance
- A multi-piece bar adds unnecessary cost and complexity to a fundamentally simple mechanism
- A multi-piece bar adds additional welding and hardware, stacking tolerances and creating many possible failure modes
Product Description
You’ve probably read somewhere on the internet that a strut tower brace never does anything but look pretty. You’re about to read otherwise. Armed with a strong background in vehicle dynamics and chassis design, we’ve spent months understanding the BRZ/FRS/86 chassis, testing different designs, collecting data and measuring performance. With the help of the FT86Club community, we’ve developed a strut tower brace that works.
GrimmSpeed design requirements for this project were simple. The GrimmSpeed Strut Tower Brace must provide additional stiffness between the strut towers, enhancing stability and sharpening steering response. We began with testing both on the street and by statically flexing the chassis in the shop. Tweaking the chassis manually and using our FARO Arm to plot critical points in CAD, we were able to identify the weak points in the system. What we found was interesting. The OEM triangulation bars actually function very well. So, while the allure of a beautiful 3-point brace was tempting, the data spoke loud and clear: a simple 2-point brace was the right solution. With that, we set out to create a clean, simple and cost effective solution.
Using 3D scanned data from multiple vehicles, we were able to quantify the manufacturing tolerances and design our brace accordingly. What that means for you is a perfect fit and easy installation. 3D-printed prototypes helped speed the development cycle and allowed us to test a number of different bracket designs for fitment and aesthetics.
One key design decision was to utilize a rigid, welded construction. The reasons for this are three-fold, but what it boils down to is the old standby, ‘Keep It Simple, Stupid’. When the goal is to reduce compliance in the system, it’s not hard to understand why a solid form design is best.
