1st thing you should change out on your 10th Gen Civic!
Didn’t want a cold air intake for my civic cause I daily drive it in all weather conditions and didn’t want to risk sucking in water. Also watched some vids and seen where if you just switched out the stock corrugated inlet tube and put in a drop-in k&n style air filter you get some nice gains plus no risk of sucking in water like a cold air intake. Also one thing, I bought my car with 33k mileage on it and granted I drive on the faster side I didn’t think the fuel mileage was where it should be. Averaged 36mpg and when I changed the filter which I believe was the original filter and super dirty. The best I seen was 37mpg. After changing my filter I hit 40mpg which is nice but I average 38 now. I have the 1.5t engine. Going to purchase another filter so I can have one ready for drop in while I wash and oil this one when the time comes to clean it.
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