Does anyone know where to find a performance radiator for the b5 s4? Do i even need to upgrade it?

 

No, I've never heard of them. If you want to help your car out with running cooler simply drain the coolant and mix it stronger like a slightly more than one to one ratio of coolant to normal water. Also from your mod list looks like you could use ic's.

 

thanks for the coolant info. coincidentally i just ordered awe intercoolers on saturday.