Build Journal: The Phoenix E46 M3 2003 6spd Phoenix Yellow

A new crowdfunding project to create a 1 to 1 replica of the original CSL carbon diffuser to OEM specifications.
Spring did its thing and melted away the snow bank. Driving this car again immediately made me smile but the interior reminded me how far away this car is from mint. 
A deep dive into BMW's rear chassis shortcomings on the E46: the often misunderstood cracking issues in collaboration with Vince @ PracticalPerformance.
The E46 M3 CSL was no doubt a masterpiece - yet was many of us look back at it as a classic, it was back then a call to the future of BMW M.

Coming from the S65 & S85 plenum, what first hits me about CSL airboxes in the flesh is the higher level of engineering & design requirements. 

These CSL airboxes are complex - the engineering & design expertise is not only for reliability, but also performance.