My 2012 LCI R56 has a loose front bumper, which led me down the path of digging through RealOEM looking for some sort of underbody attaching piece for the LEFT side, which doesn't seem to exist.

That dragged me into posts about the GP2 undertray and the JCW Aero belly pans and raises some questions:

Does the GP2 undertray fit the LCI MCS front bumper? It looks like it's made to attach to a separate splitter in pictures, which I imagine only fits the JCW bumper?

I assume the GP2 rear diffuser doesn't fit the LCI rear bumper?


If anyone knows of any other body or aero parts that fit the LCI bumper cars (besides the R58/R59 OE front lip) I'd be interested to hear it.

 

For the rear diffusor, you need the LCI JCW aero rear bumper.

For the GP2 front under tray, works just fine with the LCI Cooper S front bumper. I have the GP2 front under tray on my 2012 LCI R55 Clubman

 

Can also confirm that the GP2 front undertray fits with my 2011 R56 front bumper and the GP2 diffuser does require the JCW bumper.

The GP2 flat floor panels that go on either side of the exhaust do fit though, I'm running those as well.

Also, while the GP2 diffuser won't fit, with some creative use of plastic poster board and random metal strips from Lowes to make a bracket, you can make some pretty slick flat floor extensions to smooth out airflow under the rear bumper and reduce the parachute effect.

 

That looks like an excellent cost-effective alternative to the JCW bumper and GP2 diffuser!

 

Definitely! It was really inexpensive and at my last trackday at Buttonwillow it netted me a 5mph higher top spread and an overall 3mph increase over the whole lap. Of course some of that could have just been more driver experience, but I like to think the panels helped my car accelerate a bit faster.

Im currently considering trying to get a set of the Mini Challenge diffusers and cutting up the stock LCI bumper plastic bottom lip to fit them.

 

Yep the front GP2 belly pan fits all R55-R59 MINIs. The rear duffuser you would have to have the Cooper S/JCW JCW rear bumper.


We have aftermarket version of the GP2 kit that are OEM like. Next on my list for the R58 JCW

https://www.ecstuning.com/b-ecs-part...747330558~ecs/



You could go full upgrade with the body kit and then do that diffuser.

https://www.ecstuning.com/b-ecs-part...192154643~ecs/

 

Thanks everyone for the confirmation on the GP undertray/belly pans.

I really do like this idea/execution. If I do the belly pans, I'll be stealing this idea to replicate in Alumalite or something.

I'm partial to the LCI bumpers and not a fan of the look of the JCW bumpers for some reason, so I don't want to go the JCW route.