It was that way for a few months while I waited to get tuned.
I did set the filter in shop towels overnight but it still was oiled so I imagine that would be accurate.
Going lean means it is seeing less air which means it is flowing more. I am not claiming hp gains but I am saying it acted as if I added a large intake.
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You are not the only one, I was lucky. It seems reading k and n threads that the typhoon users were about 50/50 with a code back in the day.
Mods: ZZP stage 3, 2.9 pulley, prefab pcm, 60lbers, AEM gauges, KandN CAI, SPEC stage 3+, ZZP S3 heat exchanger
ZZP long tube header, Strut bar, ZZP rear mount, Progress rear sway bar, Redline Tuning hood struts freshly installed.