I Have an 07 Accent GS Hatchback Auto Tran with 14,333 mion it this morning. My Gas mileage was horible when I frist bought it. Iput 2 Tornado Air systems in it and the Mileage got a little better, but is still inferior considering that I have myTornado Airsystems. My old 98 Accent got almost 50 Mpg with the systems in it. My calculations give me 25/31 in mileage so far. My mechanic while giving an oil change complemted Hyundai on the engine not being worn down as compared to other new cars. He doesnt expect the car to get full gas mileage plus added mileage from the tornado systems, until maybe 25,000mi.

 

I decided to put a Cold Air intake on my Accent, and now Iam getting an average of 35 mpg mixed Milegae. I do not know city Mileage or Highway Mileage alone. Now I got 15,429 miles on it, I know for a fact that the engine is still not broken in yet.

 

What cold air intake did you use (Brand Name / Model?)

Aside from the improved gas mileage, how did your performance increase?

 

I took out only the top of the factory air box.I placed a pipe to lead on the other side of the factoryair conduit, and attached the intake to thepipe. Idecided tousethe cheaper Spectre intake from Autozone just to test it out to see if it would work out, plusif it didnt work then I would not be out of a ton of money. I used an aluminum exhaust covering piece to fab a heat shield (the intakefeltcold to the touchafter driving a hundred miles with the heat shield in place) Fuel economy is great, I expect better in the future as the enginewears down, almost as good as a hybrid actually. The performance really increased. I live in Southern Ohio near the Great Plains-Appalachian boundary, when I go up the passes on the highway the car just zooms up. The stockAccent zoomed up naturally but this car really Zooms up now.

 

Hey I have a 05 Accent GS and I bought it in May of 06 and got great mileage (550 km/tank which is about 40 litres) then all of a sudden in Oct 06 it dropped alot to like just under 300 kms. I have been to the dealer several of times and they told me to let the car "break" in well I did that and nothing changes. I have had tons of tests done and there is just no reason why it dropped so much in like 2 weeks, One tank was good, the next horrible