Hi all... I picked up my first Audi a couple of weeks ago and I love it! It's an '04 A4 USP with 19" Konig's. I've been going through the forums to find some basic upgrade info, but I still have some. I'd like to eventually add some power in the way of a turbo upgrade, so, what's a good option? Would I need an ECU upgrade for any larger-than-stock turbo? And what's the deal with DV's? I understand what they are, but, what's a better one to use? Last question for now... is there a place online to order OEM interior parts (new armrest, ECS button, headlight knob) so that I don't have to go to the dealership? Thanks in advance...love the forum!

go to goapr.com and get the R1 Dv valve, and stage 1, that should give you an extra 40 to 50 hp, then ecstuning.com you can find some interior parts parts but the armrest either stealership or sometimes on ebay for used parts. for turbo upgarde go to gpopshop.com and you canget a k04from him for 650 or go to evolution racewerks and they are coming out with their big turbo upgrade, talk to fred he's cool. hope that helps

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04 UltraSport, K04 Upgrade / APR Stage 1+ / APR DV Valve / ER TP / GE Inj. / APR snubs / Carbonio Intake / 3" turboBack

If u want a turbo upgrade then u are looking for at least 5k or so. Cause u will need the turbo/manifold/exhaust/clutch/intercooler/ + suspension/brakes and etc...
U can just get a chip, stage 1+ (bigger injector file). If u go with a chip, you will eventually need upgrade your stock DV. u can go with the cheapest one called n710 (oem part from a TT). Or with any aftermarket like Forge/Balley/Apr and etc.
Also try mjmautohaus.com