bov, intake questions

I currently own a 99 eclipse gs and im thinking about selling it spring time for audi a4 1.8t

Im very interested in buy a turbo car and it comes down to a eclipse gs-t or the a4 1.8t

Im leaning heavy in the favor of the A4 because eclipse are quite played out and to common if you ask me. I am also having alot of problems with my car and im just sick of DSM even though gs-t has totally different motor. Gs-t also is quicker stock 210hp (6.6 sec 0-60) then a chipped a4.. which are about what 200hp (low 7's 0-60)

I guess thats not bothering to much cuz audi is audi is mitsubishi is mitsubishi but i really want the wooshhhh sound. I know eclipse has a stock bov and a4 just refeeds through intake box which makes no noise.

From what im hearing bov on a4 will cause alot of problem with ecu and im not looking to run rich. From what i hear air intake will give a bov type effect but im unable to really find one... what im trying to get at is what will make a whooshh sound without effecting the ecu cuz im not looking to get my ecu re-programmed so the engine won't run rich

my evoms dv is pretty damn loud with an open filter intake.. .maybe not as loud as some bov's... (although I've never actually heard it outside the car), but the sound is defintiely there.. there are a bunch of intakes out there..all overpriced, and all about the same.. but unless you diy something, they're the only choice..