i got a helene drop in. and im ok with that. i ran jb3 1.3 rev4 map 7 on 93 octane with no problems. i know its not recommended but im trying to say that the airflow was there. i think u should get a drop in and some Air scoops and call it a day. thats what im gonna do. Seems to work alot better.
2008 BMW 335i/Sedan/Alpine White/Terra/Steptronic/Premium Package/Sports package/Comfort Access/USB/Sirius