Ive tried different rotors and pads as well as racing fluid and still end up with a spongy brake pedal. The last Autocross I did the car did not feel like it wanted to stop! I would really like to upgrade the Caliipers to brembo or something better, has anyone done that? I do track the car about Twice a year and then Monthly Autocross it… Then there are the things those orange cones tear up.. but anyway a solution for Brakes would be helpful.

 

If the sponginess started after the brake work, then it fits the classic symptoms of air in the line. If it started spontaneously, check the slave cylinder.