my filter element fell off my short ram pipe and got lodged next to the battery one night. i think the kickback (FI backfire if u will) from a rev limiting shift blew it off the end of the tube. it probably wasnt tightened enough.
anyway
i was racing my friend, and we went one run and then the second run my engine started to revlimit at 6500 instead of 7800
so imediately killed the engine and pulled over on the3 highway and got out to check everything, and sure enough the filter was not on the pipe.

i guess it was revlimiting because it was retarding the timing based on sensing a lean condition because of 0 restriction on the intake charge.
(phew that was a run-on)

~boom