Is ram air effective with forced induction? Even at speed? The 335 airbox seems generous enough to not warrant forcing air into it.
2002 E39 M5 / TiAg / Tubi Rumore / E60 SSK / Blanton 3.45:1 7 disc 40/100% locking diff / NCS Coding / Coby Alcantara / StrongStrut STB
2000 M52TU E36/7 Z3 Roadster Schwartz*3 / Rogue RSM / Rogue Trans Mounts / E36M3 FCAB / Beisan VANOS Seals