Easy to install.You will need a 4mm and 5mm Allen wrench.You will also need a carbon fiber paste, to put in-between the two carbon fiber materials. A Torque wrench is needed to put the final bolts to their spec of 5Nm.
It’s not always low hydraulic fluid that lead to spongy brakes. Check your brake pads to see if they are worn and need to be replaced.
After reinstalling the wheel, spin the wheel to see if the rotor is rubbing.
To help center the rotor in the brake caliper, , squeeze the brake lever while using a 5 mm Allen key to loosen the brake caliper to the fork. Then tighten and let go of the lever, the adjustment should have helped center the rotor in the new brake pads you just installed.
After this installation of the new pads , if your brakes are still spongy you might need to bleed or add brake fluid.