2007-03-01 10:27:11 · 5 answers · asked by steve 1 in Cars & Transportation ➔ Maintenance & Repairs
they let the engine breathe freerer and thus that gives the engine more horsepower and better gas mileage to boot.
2007-03-01 12:37:43 · answer #1 · answered by mister ss 7 · 0⤊ 0⤋
The idea behind an exhaust header is to eliminate the manifold's back pressure. Instead of a common manifold that all of the cylinders share, each cylinder gets its own exhaust pipe. These pipes come together in a larger pipe called the collector. The individual pipes are cut and bent so that each one is the same length as the others. By making them the same length, it guarantees that each cylinder's exhaust gases arrive in the collector spaced out equally so there is no back pressure generated by the cylinders sharing the collector.
2007-03-01 10:39:57 · answer #2 · answered by Yote 2 · 0⤊ 0⤋
Better flow of the exhaust gases from the engine.
2007-03-01 10:37:12 · answer #3 · answered by Fordman 7 · 0⤊ 0⤋
Better breathing for the engine,,,slightly increased horsepower,,nicer sounding for sure.
2007-03-01 10:31:20 · answer #4 · answered by Thunder 3 · 0⤊ 0⤋
they are put on a car to help cut down back pressure on the motor
2007-03-01 10:32:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋