I switched back to the os 21 speed and i must say you guys were right! there's really no need for anything over a 21 on this car. it hauls just as good as the roma but with more top end and the low end is more linear. My question is, should i use the os 2060 off road header with the 2080 pipe? The 2080 is the recommended pipe set for the engine but the on road header will not work. I have a novarossi 41021 header that im using with the 9886 pipe but would feel better if i could use the 2080 pipe. So is the 41021 ok or should i buy the 2060 header?? Thanks in advance.