It's a general observation that Normal mode yields slightly better fuel economy than Sport. Our exhaust system won't effect gas mileage, but your application of the go pedal to hear the symphony of your new AWE exhaust system definitely will. :drive:
Hey, just to clarify, are you asking if the exhaust system installation decreases fuel economy, or does driving in Sport Mode reduce fuel economy over Normal mode?
It's rowdy! The 180 Technology within the Touring Edition keeps it all together to result in a really solid tone with no drone. 180 Technology is really impressive - the nasty frequency killer.
I got the chance to ride in one of our local partner's project car on Friday with a 4" DP and our exhaust. This was a fitment and sound evaluation and it was awesome. I'm not a crazy-loud exhaust guy and I would own this set-up all day long.