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Old 10-05-2013, 05:04 PM
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Do throttle body spacers really work?

Well I really wonder if the throttle body spacer really work on a 2013 Jeep Grand Cherokee 3.6l? Is it true on modern vehicles like the new Jeeps the spacers don't do anything? Is it waste of money? A lot of articles do say that a throttle body spacer will increase power by about 20 hp or 20 foot pound.
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Old 10-06-2013, 09:54 PM
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Re: Do throttle body spacers really work?

Most spacers are a waste of money. On a carbureted motor, the spacers helped to mix the air and fuel which did show an increase in power. On a fuel injected motor, the fuel enters in the manifold behind the TB, so all the spacer does is swirl the air around by itself which makes a loud whistling noise without making any more power. I would go with a true ported throttle body instead of running a spacer.
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