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How does aftermarket Intake/Header/Exhaust affect fuel economy?

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Old 05-31-2003, 05:36 PM
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Default How does aftermarket Intake/Header/Exhaust affect fuel economy?

Aftermarket Intake/Header/Exhaust products improve the efficiency of the engine, thus, it should improve fuel economy. For those of you with I/H/E on your car, how much did fuel economy improve? Also mention what kind of engine you have. I'm particularly interested in hearing from those with SOHC VTEC engines.

I'm thinking about getting the following parts for my SOHC VTEC '97 Civic EX:

Comptech Icebox Intake
Comptech Header
Mugen Axle-Back Exhaust

Thanks!
Old 05-31-2003, 05:38 PM
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Default Re: How does aftermarket Intake/Header/Exhaust affect fuel economy? (EricUSC)

it'll improve actually if you can keep from flooring it all the dam time ;p
Old 05-31-2003, 05:42 PM
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Default Re: How does aftermarket Intake/Header/Exhaust affect fuel economy? (skribblah)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skribblah &raquo;</TD></TR><TR><TD CLASS="quote">it'll improve actually if you can keep from flooring it all the dam time ;p</TD></TR></TABLE>

better air flow will increase efficiency if the fuel system is tuned accordingly.

But as soon as you get your intake...you'll be flooring it all day long to hear the "growl"...lol
Old 05-31-2003, 05:45 PM
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Default Re: How does aftermarket Intake/Header/Exhaust affect fuel economy? (Emerika)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Emerika &raquo;</TD></TR><TR><TD CLASS="quote">
But as soon as you get your intake...you'll be flooring it all day long to hear the "growl"...lol</TD></TR></TABLE>

The Comptech Icebox is only slightly louder than stock and a lot quieter than most aftermarkets like AEM and Injen. That's what I like about it since I'm not that into loud cars.
Old 06-01-2003, 06:21 AM
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Does ur comptech header make ur car alot louder?
Old 06-01-2003, 06:31 AM
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Default Re: (hollaman)

More like it makes the car sound different. not necessarily louder.
Old 06-01-2003, 07:43 AM
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Default Re: (Apex i ITR)

all its going to do is get u to change ur driving habits..ull actually get worse milage though the motor will be running more efficiently
Old 06-01-2003, 11:28 AM
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Default Re: (deepnite)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hollaman &raquo;</TD></TR><TR><TD CLASS="quote">Does ur comptech header make ur car alot louder?</TD></TR></TABLE>

I don't have a Comptech header yet. The parts I mentioned are my proposed engine upgrades.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by deepnite &raquo;</TD></TR><TR><TD CLASS="quote">all its going to do is get u to change ur driving habits..ull actually get worse milage though the motor will be running more efficiently </TD></TR></TABLE>

If I don't change my driving habits, how will these modifications affect gas mileage?
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