this is a great thread, im looking at trading in my mazda 6s for a speed6 so im trying to figure out what mods to go with so this is a great thread... the thing im wondering is if different companies products will make different power? like i've been told the cobb sri is better then the aem... if i do get a speed6 i'll try and help out with this thread and try to get as much dyno results as possible