[Topless]

Borla is about as loud as they get. It's ok for track use but damned uncomfortable just cruising around town. Any "two can" Boxster exhaust that does not have a common resonance chamber will resonate in the 2-3K rpm range. Some are worse than others and it's simply a physics thing. If you value conversations in the car while cruising the freeways, run a stock exhaust. If you want to be heard at the racetrack over the din of a dozen race prepped 3.2L Carreras, keep the Borla. It's all a tradeoff.