Hello Audi driver! I have to buy a sports air filter before I buy it, because it lasts longer, sounds nice and maybe also brings a little more performance. Please don’t all say now: You should have bought a 2.0E or an even bigger engine…. the coal wasn’t enough. It mainly depends on the sound and the durability. Only which one should I take for my B4 2.0 ABT? And what do you have to consider? Do I still have to order pipes and something like that? redtronic