hey Iv been using on my R33 GTST S1: the 3A Racing Pod filter (which came 1st in air flow and 2nd in Filtration Recently) Iv also got a single panel heat shield and cold air intake from underneath where stock intercooler was as i changed to a FMI.
So far so good, it runs and revs better than wen i had stock air box.
Does anyone know anything else about the 3A Racing Pod's incase i missed anything, Does anyone else use them?
At the end of the day its up to u, but as everyone's said, make sure u have a cold air induction somewhere if using a pod,
every little bit helps the motor.