when i put the pod on, the first thing i noticed was the engine was heaps more responsive and even though mine doesnt have any exhaust work aside from the cat, it sounds fantastic. it gives a really 'rorty' kind of rumble noise from under the bonnet on full throttle. unfortunatelly, the under bonnet temperature with a SV21 is quite high, and untill i partitioned the filter off from the rest of the engine bay all it was sucking was hot air. it didnt seem to bother it to much, but it runs much better with the partition. i never had any problems with my airflow metre so i cant help you with that one... as for colour coding, im going to paint all the pillars on the doors gloss black so it looks like one big piece of glass down each side and should give the illusion that its pillarless. and i took my front mud flaps off and the back ones are alot shorter than standard cause i really dont like mudflaps.