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Is there any sort of TUNE available for this? I am looking to Improve Economy. I know you guys will think I am nuts but I don’t race or anything. I enjoy the cars looks and handling but would gladly trade a few HP for more MPG. I was wondering if there is a tune or anything available that will help to increase your MPG? Thanks in advance for your Help. Arkangel77

 
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Yes... and it costs $1000. Its called K-pro, you can tune it yourself, or take it to a shop. Look around on clubrsx for future questions. Also search on 8thgencivic.com... do not start a thread.

 
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when your on the highway ride the *** of a big rig so there is less drag. when you go down hill shift into neural . dont drive with the windows open.i also hear a intake gives you better mileage but im not 100 percent positive .and the way you drive dramatically effects gas mileage.

 
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Thanks for your reply - Not sure its worth $1000 but I will fallow your Links.

Arkangel77

 
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The easiest and most effective way is smooth, slow, starts from a stop. Use 87-89 octane fuel, change your air filter to a higher flow one, and keep your car tuned.

 
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Lol trade with my civic...I have never went below 32mpg even driving like an idiot. Seriously tho If I had an SI I would be getting major bad gas mileage, that poor K20 deserves to get rev'd high.

 
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You can get either Cobb Accesport or Hondata Flashpro to tune your car with. Flashpro has like 32 pre-loaded tunes to flash your car with, and Accessport has like 8 or there abouts. Both can be taken to a tuner and custom tunes done. (I think accessrace is out now...) Both are available for $700

I know people are claiming high 30's or even 40 on the highway using the Cobb Accessport.

I think that people are getting about the same or slightly worse gas mileage with flashpro.

 
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the gas pedal is the biggest determining factor of how much mpg you get. having a heavy foot vs light foot can mean the difference between 15 or 30 mpg.

 
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DO NOT listen to this guy because of what i made bold. Si's are supposed to be premium only (91 octane) K20's are high compression engines. Read the manual. Other than that, yeah he's right.

I Second gear with this post.