originally i was able to top my speed out at about 120-125 on my gs. i have a mid muffler delete and a cold air intake. after i installed the intake my top speed seemed to drop down to 115 and i couldn't push it any higher. this doesn't make sense seeing as how intakes are supposed to improve performance so any suggestions on why my top speed would've dropped. it can't be weight the intake is fairly light, definitely lighter then the original filter.