Originally posted by Kremithefrog:
It does have a flex pipe, but are you gonna run the stock small exhaust/flex pipe after buying a header?



Until there's money for an exhaust upgrade, there's no real harm. Just a small performance hit which will be about the same as running an SVT exhaust with a cat - maybe even less.


Originally posted by Kremithefrog:
And what is "emissions legal"?








Must be that jumbly-wumbly thing happening again.