Sorry to bump this thread from so long ago... I just bought a 2007 Z and am 6'4.5 I'm looking to lower the seats a bit and am looking at the recaro speed and the corbeau a4... can anyone suggest some rails that will make either one sit lower than stock --- input on which seat to get would also be valued

 

I'm interested in this too. 6'3"...I would like to install racing seats with slider rails and gain at least 1" of head room over stock. 2" more head room would be great! Must be able to move the seat forward and back also.

Thanks!