Anybody have any input good or bad on these "SLP Powerflo axle backs" found them at American Muscle for what i think is a good price .Before I pull the trigger just looking for some feedback. I drive an 09 Bullitt and want it just a bit louder.
They will be "just a bit louder", but really not much louder at all. I'd go for some Loudmouth II's or a Mac exhaust if you are planning on keeping catalytic converters on the car. I highly doubt you would be disapointed.