Thanks for the reply, it seems bad when cold but when warmed up , in S or not it just pulls well for as long as i need it to but sometimes feels a little missfireish? traction control light doesn't flicker and it makes no difference if i turn it off. its not really bad but noticeable, maybe pulling through from say 2k to 6k its a little lumpy but then when its on its at the top end its fine. not sure if it fuel filter? pump? or it is the really bang average tyres it came with? maybe its just an aged v8?