removing bolt-ons = better mpg? - Honda Civic Forum



Fuel, Oil, Cleaners & Other Maintenance Extending the life of your Civic requires the proper fuel, oil, and cleaners, along with other regularly scheduled maintenance.

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Old 08-15-2005   #1
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removing bolt-ons = better mpg?

i currently have intake, downpipe, exhaust and gas prices here in at San Francisco is damn high. i would like to know if by removing my short ram intake, downpipe, and exhaust, would i be seeking better noticeable mpg?
this is for the civic and a rsx as well.
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Old 08-15-2005   #2
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well i have an intake and header and got the highest mpg ever since I've owned the car, 42mpg. Thats with the stock exhaust tho. Also driving habits count. If I floored my car at every stop, I usually get 15 mpg.
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Old 08-15-2005   #3
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Yeah, it can give you better MPG or worse depending on you driving habits.
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Old 08-15-2005   #4
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so assuming i will be driving it exactly the same, stock parts will see better mpg?

i know the short ram intake kills your low end and thats what i need since im city driving mainly, im thinking about just replacing that with the OEM airbox.
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Old 08-15-2005   #5
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depends on how your normal driving is... if you take off quickly, then yeah, stock parts will give better MPG. If you are an easy driver, you may see a decrease
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Old 08-15-2005   #6
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my intake actually gives more low end than stock, dyno proven. it also depends on your a/f ratio. if you tune your mods and still keep it ideal 14.7:1, then mods won't decrease mileage much.
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Old 08-15-2005   #7
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i replaced my short ram with the airbox... but i looked inside the airbox and noticed its dirty. so im gonna replace that with a clean one eventually.


but as soon as i put it back on, i noticed my car was more "sluggish" under 3k rpm. if its still the same after the new filter, im gonna put the intake back on.
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Old 08-15-2005   #8
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did you reset the ecu?
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Old 08-15-2005   #9
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i did... battery was d/c while i was removing it. and i let it idle for 5min without revving/etc as well.

it felt more sluggish, but at the same time, it was going somewhere lol. idk, maybe its my mind.
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Old 08-15-2005   #10
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well SRI generally has more torque and better throttle response from a stop cause it can suck in immediate air. Its especially noticable when its cold outside. The stock intake just feels like the engine is holding back.
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Old 08-15-2005   #11
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K&N Typhoon is the best intake ever... cant wait til my car is fixed to put mine back on... going back to stock for warrenty repairs SUCKS!!!1!!
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Old 08-16-2005   #12
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agreed. i've been through 3 intakes and the typhoon is amazing. you can actually feel the difference.
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Old 08-19-2005   #13
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my MPG went back up after i took off my CAI. got about 30-35 more miles per tank doing my usual driving. exhaust didnt make any difference.
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Old 08-21-2005   #14
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I just pet my silencer in to get a sticker and it has more go on the low end, but top end power, just forget about it. I like my mods to make power were it should be, and it my car it's VTEC territory.
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