If you haven't yet talk to Peter at Doboy's Autobody..he's just recently installed an LCI carbon fiber CSL trunk on my pre-LCI with the new tails...still trying to get it coded to get rid of the bulb error in the dash but they work...
BMW Cobb Pro Tuning Services and Custom Performance Parts
N54 6MT TwinTurbo 1/4 Mile World Record: firstname.lastname@example.org, 1.8 60', Stock 6MT 3.08 Gearing (Cayuga - Toronto Motorsports Park)
N54 6MT TwinTurbo 60-130mph World Record: 6.5sec 100-200km/hr, 7.5sec 60-130mph (vbox verified)
N54 (ACN 91 octane only) World Record: 573WHP / 537WTQ
N54 (96-98 Octane only no meth) World Record: 673WHP / 564WTQ
N54 (96-98 Octane plus meth) World Record: 693WHP / 572WTQ