[kobefan]

I recently bought a ’99 Mazda Protégé and I was looking to do any modifications that would increase my gas mileage. I’ve also read a number of articles saying the best way to increase gas mileage is to adjust your driving habits (ie: drive less, at the speed limit, etc). But in terms of modifications, the only recommendation I’ve gathered is to replace the stock air filter with a performance K&N filter. Are there any other modifications that are well accepted to improve mpg? Can I expect increased horsepower or performance coincidently with the mpg boost?

Thanks for your time.