I am thinking of buying a stage 3 s4.....just out of curiousity what kind of gas mileage can i expect? and what kind of problems can i expect down the road?

please use search

but when done RIGHT, it is usually more reliable than the stock setup actually, that means that everything is installed properly and u use the quality parts expected for the install. either way, mpg will be about the same as the 4.2 V8, not great but meh

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"Great folks gathered at the festival of Golthar. One being Rizaru, Chieftain of the far lands. During his high rein, he was capable of dismounting a soldier off his stable from one hundred yards away using a mere toothpick and his penis."

ya with mott power when installed right u shouldnt run into problems unless u drive it out the as*s your gas milege shouldnt be that great but not bad at all just dont go all out and dont run it hard all the time the stage 3 will be real nice have fun

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2000 S4 silver 6 speed 5% tint all around, dumps exhaust giac chip abd intake and many more to come

Go buy a honda beater when you buy the stage 3....