Harley Davidson Exhaust Back Pressure

If you own a Harley Davidson you will notice that the baffle has many holes perforated on its surface.

Harley davidson exhaust back pressure. 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. The first item to get modified or changed on most new Harley-Davidson motorcycles is the exhaust system. VH designed this exhaust to be more than just a louder alternative and more of a proper performance upgrade.

Cobra 909 Uppercut Slip On Harley Davidson Exhaust. When installed inside the head pipes these cones act to repel the pulse waves as they return to the engine and alter velocity as the gas passes through the narrower passage. The head pipes measure around 134 inches and 24 pounds in weight.

TAB Performance is a leader in manufacturing high performance motorcycle exhaust pipe systems mufflers and accessories for Harley-Davidson and Indian motorcycles. Vance Hines claims that the Adventure Hi-Output can produce reduced back pressure compared to the stock exhaust along with reduced power-robbing popping. To a huge extent like changing the primary head pipe to 2 on a stock engine can slow exhaust speed down this loosing ability to get are in and out of the motor.

Its not because theres not enough backpressure its because there isnt enough airflow and the momentum of the air will be broken up. Getting the proper Harley sound always seems to require increasing the decibel level out the exhaust with many riders installing drag pipes as the exhaust system for the proper sound. On the market today they range from about R6000 up to as much as R20 000.

There are a big variety of silencers baffles end-cans etc. Expert Gear Advice From Riders. If the arrival of the negative reflected pressure wave at the exhaust valve can be arranged to occur during the later part of the exhaust cycle the resulting lower pressure will enhance the removal of exhaust gas from the cylinder.

Harley Davidson is developing a dynamic exhaust system design that redirects exhaust gases depending on engine RPM and throttle opening. The system features minimal bending that gives the setup a clean appearance while decreasing any form of back pressure on your exhaust which increases overall performance and power. Back pressure is the created when restriction is added to the exhaust reducing a little like removing cats andor installing more free flowing mufflers can make more power.