I am looking for a Tune, fuel injectors and anything else I need to complete my project. I have been collecting parts for my 1999 Audi A4 AEB. This is what I have:
GTRS Eliminator Kit
Kenetic High Flow Exhaust Manifold
APR FMIC
3"TIP
3" Test Pipe and full exhaust
Forge 007 DV
225TT MAF housing
Walbro 225 Fuel Pump
2.0 Coil Kit

Does anybody have any suggestions on which tune, injectors and FPR I should get? Also, anything else I could be missing to get up and running?

 

You could run Unitronics' BT tune with 415cc injectors, but I haven't heard very good things about them lately. Lots of customer service issues. Revo makes a 550cc tune that would also work but I don't believe they support Me5 ECU's.

Where are you located?

 

I'm inclined to suggest to you the tune which is on my car currently: United Motorsport AEB Stage 3. It's a 630cc file, which uses a 2.75" ID MAF housing. Also using Seimens 630cc injectors ($200 for all 4), and the ECS Tuning AFPR with fuel pressure gauge kit. Right now my fuel pressure is about 3.5bar, but I may be tweaking it.

One thing I'd like to point out: the TT225 MAF housing orients the MAF sensor perpendicularly to the stock AEB MAF housing. Many tunes for the AEB (including UM Stage 3) use the stock MAF sensor in a larger housing, with the sensor oriented the same as stock.
MK4 VR6 / TT225 MAF housing:
MAF Housing, "TT / VR6" 2.75" ID - 034Motorsport | Performance Parts for Audi, Porsche, and Volkswagen
MK3 VR6 MAF housing / what many AEB BT tunes use (the larger one):


Check out this thread for a similar thing to what I'm talking about:
Those with TT MAF Housing
Alternatively you can perform this mod to make your TT225 MAF housing work:
Fourtitude.com - how to make your MK3 maf sensor fit a MK4 VR6 MAF housing

 

I am in Minneapolis, MN

I will have to look into the UM Stage 3. Thank you for the suggestion. I called 034 and they suggested I go with one of their 550cc tunes running stock fpr and a manual boost controller at 22-23psi. Does anybody have any experience with that tune?

Also thanks for the heads up on the MAF housing. Looks like I will be cutting and rotating the sensor mount of the TT one I have.

 

Before you cut the housing, I'd suggest you pick a tune and verify with the tuner that they require a stock sensor in a VR6 (MK3) housing. If they say yes, then you'll have to cut. It's not likely, but there's a chance they'll want you to use a different sensor in the TT225/MK4 VR6 housing.