Im interested in getting some headers and x-pipe for my car. The shorty headers are more affordable but I would rather go with what packs the better punch. Does anyone know for certain wut type of HP gain differences u can expect between shorties and longtubes?? Also since my car is supercharged going with headers and x-pipe will make me lose boost. So when installing them should I go with a diff size pulley to bring the boost back up to where it once was? One person told me the money I will spend in putting headers and xpipe on and getting a new tune wont be worth the HP it gives me.