Got one on my cat back exhaust - odd looking thing.
Anyway - just wondering why these aren't more common? You can manaufacture them to effectively make all kinds of nice exhaust notes at low to mid rpm, they create a little back pressure too which helps driveability and then they just well up with air and do nothing when you're booting the crap outa the car.
Anyone know of any standard cars with them? Or do they only appear on aftermarket exhausts?
Anyway - just wondering why these aren't more common? You can manaufacture them to effectively make all kinds of nice exhaust notes at low to mid rpm, they create a little back pressure too which helps driveability and then they just well up with air and do nothing when you're booting the crap outa the car.
Anyone know of any standard cars with them? Or do they only appear on aftermarket exhausts?
