Loudest exhaust?

[Dpro]

I love my Thermal it sounds great and with the Mountune Sportcat and my s280 turbo its got a nice growl and it burbles.

To the OP a tune can help a lot if you want a more burble throaty exhaust not but ya even a catted downpipe will change the tone some.

 

[flbchbm]

I just bought the thermal. I liked how the borla sounded better but I know its a little more restrictive than the thermal even though the thermal isnt a "true" 3"

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1/2 HP more restrictive. IF you're lucky. When I bought my car, and then bought the exhaust, I assumed it would increase HP. I was not aware exhaust does SO little for these cars.