I have no perofrmance mods beside K&N panel filter. I've searched for info on throttle bodies and am more confused now than before. Can someone make me a list of mods with prices/ hp gains beside each. Is 200 hp unrealistic without spending tons of money? I was hoping to go with exhaust and throttle body, what could I expect for hp gains?
TIA, Noel

bodies.

Look a little further down and someone had just asked about UrS4's other mods.

You may want to start with the inexpensive velocity stack that UrS4 sells and remove the MAF screen at the same time. This will give you a noticable improvement.

Don't consider the K&N filter a "performance mod". The stock Audi paper filter (the one that you get from the dealer) flows as well as the K&N and the oil on the K&N can ruin your MAF sensor. Check the Air Filter comparo in my sig. I ditched my K&N. The K&N probably doesn't filter as well either but UrS4 hasn't gotten to the filtering test of the comparo, yet.

Good Luck.