Originally Posted by isotopesope
i have an extended warranty on this car, so last night i put my stock airbox back on and went back to the stock map so i can take it to the dealership today... (don't want to get hassled or denied warranty work from my mods) so after going back to stock, the noise is gone! i'm going to feel like and idiot with no noise to show them, but i still plan to take it in.
I think you've already answered your own questions. An after market intake will allow for more engine noises to transmit (usually the recirculating sound when coming directly off throttle and the turbo spooling). These are noisey cars and believe me if you try to track down ever squeek or squeel you'll go completely insane. If you can't reproduce the sound the dealer will do nothing for you. If the sound can be reproduce when revving in neutral then it really can't be any transmission noise either.