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Exhaust headers work by making it easier for exhaust to flow out of an engine's cylinders. Both long-tube and shorty headers will boost your vehicle's performance by moving air faster and more effectively. But long-tube headers do the best job of building torque and horsepower from mid-range to top-end Rpm.
Headers are one of the easiest bolt-on accessories you can use to improve an engine's performance. The goal of headers is to make it easier for the engine to push exhaust gases out of the cylinders. During the exhaust stroke, a good way for an engine to lose power is through back pressure.
Changing your headers to a free flowing set of pipes allows the engine to produce more power by improving the scavenging of waste gasses from the cylinders. However, headers alone won't make your car much faster. You might pick up 24% more horsepower.
Chevy High Performance Magazine installed a set of Hooker headers onto a stock engine and saw an immediate increase of 16 horsepower and a more dramatic increase of 53 foot-pounds of torque. Headers bolt onto the block and attach to the stock exhaust pipes and catalytic converter.
0:01 32:01 Suggested clip How To Make a Header with Equal Length Runners in SolidWorks YouTubeStart of suggested client of suggested clip How To Make a Header with Equal Length Runners in SolidWorks
Are Headers Worth The Performance Improvement? The answer is yes, headers will boost performance IF your vehicle is prepared for them. Headers take the place of your exhaust manifolds, which are the first part of your exhaust system between the cylinder heads and the front exhaust pipes.
Properly designed and tuned headers are a big power gain, because the engine won't have to push out that exhaust gas. To answer your question, short version, it improves HP by helping the engine evacuate the exhaust fumes that it has to push out, it is liberating HP, not really adding horsepower.
Headers are one of the easiest bolt-on accessories you can use to improve an engine's performance. The goal of headers is to make it easier for the engine to push exhaust gases out of the cylinders. During the exhaust stroke, a good way for an engine to lose power is through back pressure.
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