BMW E46 M54b30 330i M54b30 intake VS N54b30 intake manifold comparison on Dyno by RACEMODE - YouTube
Bimmerforums - The Ultimate BMW Forum
Just did a m54b30 intake system swap + ms42->ms43. Info in comments : r/e46
BMW E46 328I with M54B30 intake manifold and camshaft ccv delete | BMW | First run after assembly, Higher compression ratio 11.2:1 CCV delete M54B30 intake manifold M54B30 intake camshaft Polished valves