yes ill be the first to do this!!
YOU HAVE A STOCK KA23DE?? thats so rare!!....just kiddin just being an asshole, now that thats over with...15 degrees is aaaalooot! retard that definetly...i bumped mine up 3 degrees but didnt want to go any more and still ended up blowing it up, but that was because i was clutch kicking at red line at osw lol but thats besides the point. If your not under forced induction advancing timing a little isnt bad but run 93 so it doesnt ping, but dont retard it past stock ot youll have no power, so yea retard it to about 24/25, i think 21 is stock