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2. Exhaust system - Wikipedia

   en.wikipedia.org/wiki/Exhaust_system

   The Header-back (or header back) is part of the exhaust system from the header outlet to the final vent to open air — everything from the header back. Header-back systems are generally produced as aftermarket performance systems for cars without turbochargers .

3. Exhaust manifold - Wikipedia

   en.wikipedia.org/wiki/Exhaust_manifold

   The goal of performance exhaust headers is mainly to decrease flow resistance (back pressure), and to increase the volumetric efficiency of an engine, resulting in a gain in power output. The processes occurring can be explained by the gas laws , specifically the ideal gas law and the combined gas law .

4. Tuned exhaust - Wikipedia

   en.wikipedia.org/wiki/Tuned_exhaust

   In a four-stroke engine, an exhaust manifold which is designed to maximise the power output of an engine is often called "extractors" or "headers". The pipe lengths and merging locations are designed to assist in filling the cylinder with the next intake charge using exhaust scavenging. [1]

5. Expansion chamber - Wikipedia

   en.wikipedia.org/wiki/Expansion_chamber

   The vacuum wave arrives in the cylinder during the transfer cycle and helps suck in fresh mixture from the crankcase into the cylinder, and/or prevent the suction of exhaust gases into the crankcase (due to crankcase vacuum). [3] However, the wave may also suck fresh mixture out the exhaust port into the header of the expansion chamber.

6. Holley Performance Products - Wikipedia

   en.wikipedia.org/wiki/Holley_Performance_Products

   Holley Performance Products is an automotive performance company based in Bowling Green, Kentucky. It was founded in 1896 in Bradford, Pennsylvania , by George Holley and Earl Holley. When the company was based in Michigan it was a major producer of carburetors for many Detroit-built automobiles.

7. Manifold (fluid mechanics) - Wikipedia

   en.wikipedia.org/wiki/Manifold_(fluid_mechanics)

   Exhaust manifold An engine part that collects the exhaust gases from multiple cylinders into one pipe. Also known as headers. Hydraulic manifold A component used to regulate fluid flow in a hydraulic system, thus controlling the transfer of power between actuators and pumps Inlet manifold (or "intake manifold")