Been fighting an issue on my dads car for a few months now and I am just lost. Car is a 2011 GT500, lots of drivetrain and suspension mods and. The initial few mm of brake pedal travel yields reasonable braking performance, but anything past that and it just seem like there is no more force, like at all. It stops the same by just barely pressing on the pedal as it does slamming it down all the way. When I first started noticing it, I thought it was just glazed over pads and rotors so I took a scotch brite wheel to them and cleaned it off, nothing changed. Then decided to flush the factory brake fluid out and put in some generic DOT4 and of course bleed them. The initial little bite was better after bleeding, but still the same dead pedal after it. Fast forward to yesterday when the fresh Stoptech pads and Brembo rotors get here. I took a scotch brite wheel to the rotors again to get the gross shipping coating thats on them, and then got everything installed. Greased everything, did new rear pads as well (rear rotors were fine). Bled them, and took it for a drive. After bedding them in and using the same procedure I've used before and on my car (2006 with Brembo's, stops fantastically), NOTHING HAS CHANGED. And the driver rear caliper was smoking after the initial bed in process lol. What...da...hell... I should also mention that the car absolutely DESTROYS the front rotors after a weekend of drag racing. It has 700 whp so it hits decent speeds, but the rotors look like a Dalmatian puppy with the hot spots all over the surface. It eventually slows the car down, but I really feel like it should have way more braking force than it does. Any ideas? Have two race events these next weekends with it where it'll be exceeding speeds over 160 mph and I am scared to drive this death trap.