Just got an 06 A4 DTM with some mods already done to the car, its pushing about 240 now and looking for more. Any suggestions chipping vs tunning it, i heard i can get more out of it if it is tunned right but on the other hand it has all the components for a KO4 chip upgrade. Any Suggestions? here is what it has so far...
APR K04 Turbo
APR High Pressure Fuel Pump
APR 2.5" Exhaust with center resonator removed
Eurocode Test Pipe
Stasis High-Bias center differential (20/80)
RS4 Rear Sway Bar
Carbonio Cold Air Intake

do u still have this car?,bcos i have a 2008 dtm

Go head with chip and increase some more and check. the car that you own could you please post some reviews i just wanted to see them.

Best Buy BMW (http://www.cheapeuroparts.com)

chips are for stock cars with stage 1 tuning, ie intake exhaust etc.

with all your mods done your best having it custom remapped with all mods taken in to account. you will get alot more power and drivability from a live remap

like i say a chip is generic mapped on a car with little mods, what you have listed needs the fuel and timing and boost dialled in completely different to a stock car with s1 mods

hth