This makes aftermarket exhaust headers a good place to find extra horsepower and increase torque.
Exhaust headers work by making it easier for exhaust to flow out of an engine’s cylinders.
But long-tube headers do the best job of building torque and horsepower from mid-range to top-end RPMs.
Do headers really make a difference?
For long tube headers, the exhaust pipes are much longer and merge farther out. Because of this, each design impacts back pressure in the exhaust system in a different way. Longer port pipes result in lower exhaust back pressure. This means improved oxygen intake and a boost in horsepower.
Do headers make a car louder?
Yes they will make it a little louder, but not a significant amount. The tone will change and it will sound much more “tinny”. If you leave your stock mufflers you will not have a problem, but if you do a cat-back it may get too loud for you.
Are headers legal?
Most of the headers are 50-state street legal, which means that they don’t interfere with pollution-controls on your vehicle. Some headers are designed for off-road or racing vehicles that are exempt from smog certification, so they are not street-legal.
Photo in the article by “Flickr”