alright lets cut down to business i have just purchased a 07 A4 2.0T and well iv drivin and owned lowered and coil overed bmw's cause thats what i have owned and this is the first audi i have bought and i want to go air bags this time they look real nice and love the way the sit so i want to know what ur Audi fanatics can tell me bout air bags, set ups deals and best way to go iv been told by my buddies freind best way to go is two 3 gallon tanks instead of going one 5 gallon but i wont to know from you guys and so on ......... but give me it all i dont want short cuts or cheap *** way to do it i want the goods i want it to last and be nice not the ugly *** cars that are a disgrace to everyone so thank you to all who reply and ill have questions when u post