Hi, I just picked up a sweet new to me 2002 M Roadster with the S54 engine. I am super excited since it was the car I wanted back in college but obviously could not afford. It was pretty sweet Red with S54 and 56k on the odomoter. It is only needing two major items from the PPI, convertible top and clutch, plus the Inspection II servicing and miscellaneous items like fixing the cruise control,new speakersm replacing the mirror, and belts, etc... and then finally performing a paint correction with a CQuartz. It will be a fun 2nd car after my GTI daily. I'll be doing a combination of diy and shop work. I have a few questions though as I intend to perform some mods for auto-crossing, canyon carving, and a couple of track days per year. Rear differential: I intend to upgrade the rear subframe, I have a friend with an off road racing team with 8 different welding devices, so I may upgrade the diff at the same time. I find the gearing on these way too long. Has anyone upgraded to the 3.73 or 3.46 gears? Do you like them? If so is there a differential you like? I have lift access so I can rebuild a clutchpack but prefer not to have to. I intend to keep the engine stock and it will never be boosted. Brakes: I was intending to go stainless steel lines, Hawk HPS pads and stock rotors, any recommendations? Suspension: How do people like to set these up? Stiffer in the front the rear, Does anyone have a handling tutorial for M Coupes and Roadsters?