master back brace


Car model: RX-8
Model: SE3P
Selling price$155.00

Product information

*It may not be possible to install it depending on the grade and year even if it is the same car model. Additionally, additional parts may be required for installation. Please be sure to check here for detailed compatibility.

We focused on the rigidity of the unit from the brake pedal to the master cylinder, which converts pedal force into hydraulic pressure. The pedal mounting area, bulkhead/master back, and body on the engine room side are three-dimensionally reinforced with highly rigid steel braces. By suppressing distortion of the entire unit, the delay in response from when the pedal is pressed until the brakes are applied has been improved. This contributes to the realization of "deceleration at will." >>More details


Toward deepening "deceleration at will".
The key to brake tuning is ensuring rigidity.

In order for parts that move and function to operate accurately, it is ideal not to move the parts that support them...We at AutoExe have long maintained that body reinforcement is the origin of tuning. The same goes for the brake system. For sports-oriented drivers who enjoy driving, there is plenty of room for improvement in "effectiveness" by suppressing the slight distortions in each operating part that are allowed in mass-produced cars.
What we focused on was the rigidity of the unit that converts pedal force into hydraulic pressure and transmits it to the pads, from the brake pedal to the master cylinder. A portion of the pedal force that would normally be converted into hydraulic pressure escapes into the bulkhead (the partition between the engine room and the cabin) where the unit is installed, or into slight distortions of the unit itself, resulting in a delay in effectiveness ( (see figure). Of course, this level is completely negligible for normal driving, but it is a tuning point that cannot be overlooked if we are to achieve our goal of "decelerating at will."

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