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Old 06 Oct 2008, 02:16 pm
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Default Whats the difference between a exhaust header pipe and exhaust headers?

i have a 99 civic coupe, also was wondering which one i should put in?
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Old 06 Oct 2008, 02:31 pm
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The Honda engine already has a set of headers (that set of four pipes on the front of the engine) that should work well. Some manufacturers may make a set of longer pipes, but I doubt they will be a lot better. The original style stainless steel flex pipe does a lot to quiet the exhaust. If you want more noise, longer pipes and straight tubing might make a lot more rumble.
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Old 06 Oct 2008, 03:31 pm
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as an inline four cylinder...you only have one manifold or header, the plural "headers" does not apply.depending on your trim level, your civic either came stock with a cast manifold bolted to a tubular downpipe, a flex tube, and the rest of the exhaust; or it came with a stock bent-tube header bolted to a tubular downpipe, flex tube, and exhaust.there are several different manifold/header options available for your car, from turbo manifolds to 4 into 2 into 1 long tube headers. they all have different benefits and detriments, depending on how you plan to use the car.
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Old 06 Oct 2008, 03:46 pm
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If you get the pipes, you can make your engine really loud when you race. It's really nice. But it might also drink up a lot of your gas. Honda's should already have headers on your car when you already bought it.
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Old 06 Oct 2008, 04:01 pm
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Headers are a "tuned" exhaust system designed to improve performance. On a good header, the length of each pipe element, from the exhaust port on the block to the point where the pipes join, is supposed to be the same The reason is that equal length pipes will provide equal back pressure to all ports/cylinders. The proper diameter is also important. Bigger is not always better. As a rule of thumb narrower tubes are better for lower rpm. bigger tubes are better for higher rpm. Regardless, you don't want tubs bigger than what is required for max exhaust flow at red-line. You're engine needs the right amount of back pressure to maximize performance.
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