Long tubes make power in the upper RPM's.Originally posted by snoman
Actually long tubes are for better low end and midrange performance and shorter tubes are better at higher RPMs as a rule. You have it backwards.
Shorties make power low and Mid.
Another good read.
Second, JBA proved in both tests that its shorty headers produce more torque, while giving up very little horsepower, over long-tube headers, which have traditionally been believed to provide more power. And since torque is what gets you rolling faster, whether you’re going from stoplight to stoplight, duking it out at the X-mas tree, or towing, JBA has convincingly shown that for overall performance and easy fitment, a set of tuned shorty headers is hard to beat.