Ecu tuning for 99' a4 1.8t?
Just purchased a 99' a4, don't know a whole lot about ecu tuning for the eairly b5, had a b6 1.8t, but now starting a new slate with this car. What the options do I have as far as high hp potential? I want to build a 2.1 stroker motor and a local custom shop is doing the turbo. Ive heard of putting a wideband 02 sensor, and swaping the ecu but im not sure if thats the fix. Can anybody help me with my problem?
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i have heard allot of good things from APR do you have the 110kw engine ?
so much but I just wish I didn't have to 
on it so much, but I enjoy it non the less 
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