talk to the people doing the flash... i researched apr, revo, giac and decided to go with apr but the actual shop was run by a bunch of assholes. they didnt want to use my siemens injectors so they tried to sell me the $500 225tt injectors and when i didnt do it, they screwed me out of almost $100. went to install the injectors, took them back out and said that they needed spacers and that they couldnt do the install. so i left the shop but still paid the $54 for the flash that they did then undid.... i got on the phone with the site i bou8ght the injectors from and they told me what to do so i went back to the shop with the injectors and showed them that they must not have worked on many audi's because they didnt need the spacers for the fuel rail. so they installed the injectors, charged me for the flash again, and the install.. all done, i paid almost double because i didnt use the injectors they wanted me to.
lesson: u did ur research on what brand to go with, research the shop and talk to them before u take u'r car in and give them money.. will make the process much nicer. and btw, i was apr stage 1 first.. bought siemens injectors for $250 and went for 1+.. at the time i got the flash to 1+ i had catback, and dv. if you plan on going test pipe (highly recommended,
ebay ) let the shop know and they can put in a file to make u'r check engine light stay off. the guys who say get a front mount are prob right... i cant say one way or another because i dont have one yet, but i have all the parts just waiting for a nice day.. chances are it's a very good idea.. and the test pipe will keep u'r egt's down and possibly save u'r turbo's life.. like everyone else said before on here, it will work w/out these other upgrades, but to get the full effect, they are a good idea..
think of just getting a chip and nothing else and compare that to just changing u'r brake pads and not touching the rotors at all.. sure, you can do it, but to get the most out of u'r brakes, it's good to service both pads and rotors at the same time...
edit... upgrade that dv... if you like u'r turbo, upgrade the dv.. bad things will happen if that factory diaphram dv goes poo on you.. upgrade to a piston type..
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