a remap on one of these will do little for economy mate.remaps generally work better and give greater gains on diesel cars.you may get an extra couple of miles per gallon extra and about 15 to 20 bhp more....if you want good mpg go for a 320d mate
welcome mate.lookout for suspension bushes,rusty arches and on early e46's the the rear subframes can be a problem if the car has had a hard life.basically it rips the car to bits
i've just bought 2 conti's for trade price....220 for the 2....225 40 18s......i bought the car with some on but they are worn now.i think they're great tyresfor that price.they are usually 300 quid for the 2.