I think these are a decent idea. the mileage is acceptable given the intended use. How many people drive 100 miles a day?
Granted, it can't go on extended trips, but that isn't why this car was built.
2002 Focus ZX5 in Zinc Yellow: Steeda Strut Bar, Tom's Tune, Volant CAI with Aux Pipe Extension, SVT suspension, and ST200's.