Help!!!
I don't know what to get.
I was thinking about getting a Milltek Audi S4 Cabriolet 2004-on Dual Cat-back Exhaust, but should I go with resonated. Does it sound that much better? Does anyone know from personal experience how it sounds in person. I don't want my S4 to sound like a modded Civic, i want a deep nice roar/humm. I was also wondering what the best air intake system would be for my car. I was looking at Stratmosphere.com at HyperFlow V84 Induction System for the 2004-on S4 V8, but is there a better option for me? Help please...

Also...how are the downpipes for the militek? They claim that, combined, it produces 30 HP at the wheels. I wonder what the complete gain would be including the Hyperflow would be. Anyone know anything about these or other products?

 

I think the milltek system sounds great on a B6, but dont expect to gain the full 30Hp at the wheels, i think 30 crank Hp would be closer to the results you would see with a full system.

 

would a modification to the exhaust system void the factory warranty?