well the more mods you put on your car
the more you will sacrafice for fuel effiency
thats just the play of the game
more fuel means more power
and to extrude hone your intake manifold you will need
to go to a speed shop and have it done manually
cause there is no co. that makes aftermarket performance
intake manifolds
and there would be no point in honing out yoru exhaust manifold cause all you have to do is just get better headers
DC are good , dont go with Nuespeed
and if you are looking into extra performance header
look into JDM ones
those will do just fine
the more you will sacrafice for fuel effiency
thats just the play of the game
more fuel means more power
and to extrude hone your intake manifold you will need
to go to a speed shop and have it done manually
cause there is no co. that makes aftermarket performance
intake manifolds
and there would be no point in honing out yoru exhaust manifold cause all you have to do is just get better headers
DC are good , dont go with Nuespeed
and if you are looking into extra performance header
look into JDM ones
those will do just fine