Looking hard at the JCW CF rear spoiler for my R56 and have some questions if you've got one of them. Is the rear down force really better than the MCS's spoiler? How much is aerodynamic drag increased if any (mpg)? If it's just eye candy, I ain't biting!

 

I have mine installed couple weeks ago. I have to say I can not feel any difference about rear down force. It just made the car looks better.

 

I have a R53 JCW wing, the only thing I notice is the boot is less dusty, that means the air flow is different. Its 99% eyecandy IMHO

 

All of the Aero parts have a function including the spoiler. You guys doing 55-65mph daily will not notice the improvement but they guys pushing triple digits do see handling improvements.

 

Thanks David ! That's exactly the info I was looking for. Hey, bet you're lovin' that RMW tune on the Autobahn.

 

Well , lets just say, I have found the limits of the car and the tune.

 

 

By the way, check out the Jsart wingtip.

 

How fast? I would love to take the JCW onto the autobahn with my RMW tune.

BTW, speaking of spoilers, just ordered a M7 C-Wing.

 

The cooper S shuts down at 151mph. well not really shut down but speed limited. JCW should be able to squeeze out about 5-10 mph more.

 

I'd like to do 160+mph. The fastest I've ever traveled is 130mph