Apexi V-afc vs. Aftermarkt ECU chip
2k Civic Si, will soon have I/H/E and high flow cat. i'm gonna be running a 4-1 long tube header so i'm also gonna get adjustable cam gears and cams to run a nice overlap and take advantage of the scavenging effect. after the header goes in, is it better to get an ECU chip or a V-afc to pull every last drop of power from the car? thanks!
Eric