Quote Originally Posted by admedlin
does the cold air intake really do anything? I know the stock airbox is designed very well and I've heard that it won't really help anything. How much do you want for it btw?
I wouldn't waste money on an intake unless it was Gruppe M, J's or Mugen. Otherwise, everything else is for more of a "grunt" sound.

Quote Originally Posted by admedlin
I had the Berk's test pipe on the car for a few days, but the AP2 has a more sensitive O2 sensor and I didn't want to mess with it. I bought it on here and then sold it back to someone on ebay in Australia for more
I'm running the Berk's TP on my AP2 with no issues. I like the sound of the TP with the OEM exhaust, not too loud yet you can still hear something. Has a nice mellow tone to it.