I'm not sure if this is normal or not. Everytime my car is running and I stand behind the tailpipe, I can feel the air coming out of the exhaust pretty hard. It does this when the engine is cold or when it's been running for a while too. With every other car I've owned in the past, I would barely feel the air coming out of the exhaust and never with this much force. Is this normal ??? I have a 2007 G5 base model. Thanx