I recently did my exhaust on my S4 2.7TT 3" Downpipes merging to a 3.5" pipe then out to a Vibrant 4" Muffler with dual tips. I still get a lot of drone and rattle can noise from the exhaust right before it goes into boost. To quiet it down installed a Flowmaster 3.5" Resonator but it still has that rattle can noise right before it goes into boost.

Anyone know how to get rid of that noise? also i want to replace the flowmaster 3.5" resonator i installed because it hangs too low and rubs over speed bumps. Can anyone recommend something else that is smaller and quiets the car down a lot.

 

A cat. (not the mammal).

 

an s2000 style anti resonance chamber? you'll have to play with it