Luis, yes, a fair summary.Generally speaking,tuned headers are unecessary on a mildy tuned street engine.About the only thing they will do is heat up the engine compartment.Equal length,or more correctly,equal flow tube headers are tuned for a certain rpm power range,usually high rpm.Outside of that range on a street engine with mufflers,a set of short tri-y tube headers or the classic cast iron headers will make more usuable power and throttle response at normal road speeds.
