hks afr, apexi s-afc or aem fic for n/a s5?
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hks afr, apexi s-afc or aem fic for n/a s5?
just wondering what controller works best on our cars. s5 13b n/a 6 port, streetport, header, exhaust, cold air kit, wired aux ports(unfortunately), disabled vdi (unfortunately), removed acv and airpump(hence no aux ports and vdi). it seems to run lean except over 6000 rpm. i have a pair of 550cc injectors for a turbo i was going to try in primarys. not sure if thats gonna help or cause problem though. so figured a fuel controller might be the way to go. any ideas? eventually thinking about turboing. i know its a pain to convert and its easier to do a swap.
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