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Title: B5 RS4 Post by: ZakDodge on March 09, 2019, 07:30:31 PM So after a decent amount of digging and searching on the subject I cannot seem to find any information on wether of not the b5 rs4 was a narrowband or wideband ecu.
Please someone enlighten me. Thanks in advance Sent from my iPhone using Tapatalk Title: Re: B5 RS4 Post by: nyet on March 09, 2019, 07:56:43 PM https://s4wiki.com/wiki/Tuning#Fueling
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