TypeR has an LSD, close ratio transmission, weighs about 100 pounds lighter. Much more aggressive suspension including strut bar in front and rear. They actually reinforce the chassis from factory. Larger brakes. 11.1 inch fronts vs 10.3 and 10.2 rears vs 9.4 for the gsr. Enough braking power to make your eyes bleed. And the motor 195hp vs 170hp. Larger throttle body, better valve train more aggressive cams etc.... Higher compression ration 10.6:1 vs 10.0:1 including a mind numbing redline that goes all the way until your 9000rpm rev limiter. There is no feeling quite like this car. The driving experience is just unequaled.