Has anyone tried retrofitting the GP2 front brakes yet? I'd like to hear about what parts were needed and what it cost. Also driving impressions before & after. Thanks!

 

Not worth it. For the price you might as well get proper brembos kit than the 6piston system when all is said and done will have more expensive rotors and calipers. You're better off with 4piston wilwoods or stoptech (which I have) which have better options for pads and rotors.