Audi S4 Exhaust Comparison

Audi S4 exhaust comparison. Which sounds better? Milltek exhaust or factory S4 exhaust. The Audi B8 and B8.5 S4 are incredible machines. Their 3.0-liter Supercharged V6 engines have plenty of go but lack any audible presence. Which exhaust do you think sounds better on the Audi S4, the Milltek or the factory?
A quick note; both of these S4's are equipped with APR pulleys and intakes.
For more info on these S4's, check out my reviews on them;
Audi S4 B8.5:    • This Audi S4 is a 460 Horsepower Mons...  
Audi S4 B8:    • Here's What Happens When You Stage 2 ...  

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