Harley Davidson Exhaust Back Pressure

When the two are equal the system is flowing almost perfectly but nothing is perfect in the real world except hummingbirds.

Harley davidson exhaust back pressure. The holes are designed to help dampen and break the sound wave. The back pressure is the negative half of the sign wave the exhaust flow is the positive half of the sign wave. If you own a Harley Davidson you will notice that the baffle has many holes perforated on its surface.

A common belief is that by reducing back pressure in the exhaust system you will automatically gain. There are a big variety of silencers baffles end-cans etc. Expert Gear Advice From Riders.

A common belief is that by reducing back pressure in the exhaust system you will automatically gain horsepower. Due to EPA regulations often times getting your bike to sound like a Harley means you need to make it louder. Vance Hines claims that the Adventure Hi-Output can produce reduced back pressure compared to the stock exhaust along with reduced power-robbing popping.

Cobra 909 Uppercut Slip On Harley Davidson Exhaust. Ever since Cobra introduced the 909 slip ons they have been getting requests for a version that aligns perfectly with the bags. The rider often believes that by reducing back pressure in the exhaust system the engine will also increased.

Vance Hines Titan 450 Slip On Harley Davidson Exhaust. Home TAB Performance Resources Exhaust Back Pressure Back Pressure The most common part replaced on a new Harley-Davidson motorcycle is the exhaust system. VH designed this exhaust to be more than just a louder alternative and more of a proper performance upgrade.

They are call AR cones anti-reversion cones. Some owners believe that by removing the mufflers and installing straight pipes they are decreasing extra back pressure from stock muffler baffles and creating more horsepower. Thats what loses the power.