Decided to test the difference yesterday, took the car out for around 30 min with the pod for some semi spirited driving with an outside temp of 28 deg (10.30.am). Then came home opened the bonnet, waited for it to cool, ripped off the pod, mounted the original filter box assembely completely as standard, standard flat panel filter (The original one i took out) and took her out for another spin. Took about 50min to change over all up and be back in the car. This was for my own testing purpose only and i can't say it will be the same for everyone but...........she is running fantastic in my opinion i have actually improved it by going back to the panel and it's not even new. Note that i had no form of CIA and the pod was just sitting in the engine bay where the box was, also i have the std intercooler so there was no holes under the pod either. The biggest improvement overal was sound, for me i think when i put the pod on the induction sound was so loud (all i could hear in the cabin) you just thought that performance was increased but now i can hear the exhaust note perfect and the sweet, sweet sound of that turbo winding up . Thankx heaps for the advice R31Nismoid i would have just considered the pod to be better before reading about the temp affects.