SinewayB5A4
06-26-2012, 06:02 PM
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?