One major hurdle for a track-only car is the limitation of the hydraulic valve lifters in the M50, S50-US, M52, S52-US, M52TU, and M54 engines. These
Valve Lifters for BMW 5 Series E60 (2004-2010)
Cylinder Head for BMW E36 (1992-1998) M3
Replace Hydraulic Lifters Of CRDI Engine, 48% OFF
Crest Automotive Tuning - A) ENGINE PERFORMANCE (See also forced induction & remapping sections)
BMW Engine Parts for BMW 3 Series E36 (1992-1998)
Valve Lifters for BMW 5 Series E60 (2004-2010)
BMW S65 Schrick Solid Lifter Conversion Kit, convert Hydraulic Lifters To Solid Lifters
BMW Internal Engine Parts for BMW 3 Series E36 (1992-1998
Supertech mechanical lifters kit BMW M50 S50 M52 M54 24V 2.8L 3.0L
Schrick Parts Performance Parts & Upgrades - ECS Tuning