Stock exhaust louder
I currently have a 2011 335i that is unhooked the solenoid that closes off 1 exhaust pipe below 3 k rpms so it is always dual exhaust. The car sounds great at start up and driving around town. We test drove a 2013 535 yesterday and are working on a deal to buy it but my wife wants it to sound like her 335 and says the 5 is too quiet. Can I do this same mod to the 535?