My friend has a 4door honda civic dx automatic and went to the track last night and i didnt go but he said he ran a 15.921 and all he has is a cai and a performance muffler.Could he really run that time because i know 5speed n/a eclipses with alot more done to the engine then that and they only run like a 15.7-15.9.I called bs on him but what does everyone else think