mine hets 115 no problem can push it to just over 120 and like i said i only got 125 once that was racin a citroen... not sure wot size it was (die turba) but i was bumber t bumber then e started t pull away at 125... all ive got is a cobra sport back box n a k&n replica filter that came wit the car lowered 40mm n a 4-2-1 mani... not sure wot make it is but ill take a look n let u know next time im on.... but i dont understand that other blokes civic only reachin 111mph and limitin in 4th... my m8s civic keeps wit mine til 110 then his dies off his is completelt stock.