Hey guys I usually post in A6 section but im moving on hopefully into the b5 s4:D! Did some searching however i was wondering if i upgrade to a Milltek Cat-back exhaust and still keep the stock down pipes for a few months until i can afford upgrades is that ok? If im wrong please correct me this is a new ball park for me hahah old 99 A6 2.8 owner here! THANKS IN ADVANCE

I've been running stock downpipes with miltek exhaust with no problems. Gettin the piggie in next week !

yeah its definatly ok

im running awe twin 1 with stock dps

for the price/hp it's not worth it at stock or stage 1/2.
But they make the exhaust note sound sooo much better!
you're good!