Yes, it will increase "drone"...and will be especially noticeable when MDS kicks in. On my '06, I investigated several choices, and finally decided a Catback was the best way to go. I ended up with an SLP Loudmouth II system, and it sounds great. I've had it on there since early 2007.ImperialCrown said:The purpose of a resonator is to dampen a certain 'bandwidth' of noise, like a 'drone' at a certain rpm. It may be a little louder overall, but it may also be very annoying on a long trip trying to listen to the stereo.
Removing them won't net you any real increase in horsepower and may throw off the delicate balance of exhaust backpressure necessary for good engine performance/economy.