I saw my RS having a bigger extractor, manual aircond dashboard, 2 pot front brakes, oil cooler and LSD gearbox. Inside the engine, I have really no idea. I heard they have titanium valves with some claiming to be forged piston. i don't really believe that because the production cost will be very high...
As for more powerful cams, I think it is. When I started the RS for testing at the half cut shop, the sound is extremely more garang then the previous standard CK4A.
As for the LSD, I think it is an option for Mirage buyers. So got LSD also does not mean RS right?
And for the whp for my RS, I have to go dyno first. My car should be completed this week. I will post the result in http://mivecpro.com
I will dyno a few times. 1st time standard. 2nd time with reprofiled cams. 3rd time with Emanage. I will post all my mods there as well.