Psi Cast
The first major component of your performance exhaust system is the header. Most Honda Acura come with a crude cast iron log-type manifold stock from the factory. However Honda Acura manifolds are much better than the ones found on a domestic cars but more power can be made with a real tubular header. How much power you make with a header depends also on what is behind the header. If the stock exhaust system includes restrictive muffler design, small diameter exhaust pipes with a lots of wrinkle bends on them the header is not going to have a chance of making a big difference in the performance and horsepower. A good header can be expected to make 3-5 horsepower with the stock exhaust system from the header back. That sounds disappointing but on a engine with numerous modifications the same performance (aftermarket) header can gain you 10 horsepower. Any of the big power adding modifications like nitrous oxide, supercharger virtually require a free flowing exhaust and performance header if you want to take advantage of there power potentials.
Performance headers usually come in 4-2-1 design where each cylinder has its own exhaust pipe than they merge into a pair and each pair of pipes combine into a single pipe. Usually cylinders 4 and 1 are combined and cylinder 2 and 3 make the second pair. The cylinders are combined in such a way because the engine pistons fire 1 and 3 then 2 and 4 and the exhaust of cylinder 4 is going to create a little (from 5 to 15 psi) negative pressure for a cylinder 1 that is going to help to suck out the exhaust gas out of that cylinder.
Installing performance header is quite easy. Most aftermarket headers are design to use all the factory mounting points and brackets. When shopping for a header look for clean welds and thick flange plates for a good seal. The stock gasket should be replaced and it is going to work perfectly fine with your performance header. Make sure to check if the engine in your Honda Acura car is the original or it’s an engine swap. Most headers don’t have brackets for mounting the factory heat shield but it is pretty sure you will want to show off your new header anyway.
Performance exhaust header can be installed on Prelude, Civic, Rsx, s2000, Integra or any other model Honda Acura car.
http://www.PerformanceHondaAcura.com
Honda Acura Enthusiast
Alpha Psi Omega, Alpha Beta Kappa Cast-2008 New Members
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