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350Z fans! If this H doesn't say "350Z Home", visit our new 350Z section!
Exhaust Upgrades
Performance Exhaust Systems
A performance engine is an integrated affair. When you modify one set of components, you have an effect on other systems. On a mildly modified engine, a minor upgrade in either the cam specs, exhaust system, or carburetion can be done independently. For more performance, the bigger cams work best when integrated with upgrades in the exhaust and carburetion. The exhaust system is probably the first area to improve on any engine, because this will only enhance future modifications. The study of Physics tells us that we usually can't get "something for nothing", but when adding headers and improved exhaust components to an engine, we almost do. The improved exhaust flow and velocity derived from tubular headers and free flowing mufflers is one of the only modifications you can make to and engine which will improve both power and fuel economy.
Special Note To Z Owners Doing An Engine Swap:
If your Z has an engine of a different year than original, or you are not 100% positive of this, please supply us with the head casting number when ordering your new exhaust header. This casting number can be found between the #1 and #2 spark plugs on the bottom edge of the head, and will be a letter and two numbers, such as "E88" or "N42".
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