What can be the first part to replace when trying to increase horsepower on a 4.6 engine?

What can be the first part to replace when trying to increase horsepower on a 4.6 engine?

Depending on how much horsepower you are looking for, the simplest solution is to make your vehicle breath better. Think of an engine as a large air pump, the easier you can bring air in and have it exhaust, the better it will perform. I would suggest change the air filter to a performance or cold air induction system and enlarging the exhaust. You may be able to increase your HP from 5 to 12 percent, and it is less work and not as expensive. If you want to be more radical, look into seeing what performance parts are available, and talk to your machinist to see what can be accomplished.

Jerry Ives
Assistant Professor, Parts Technology
Alfred State College, Wellsville Campus

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