Has the aero muffler improved fuel mileage for anyone??

 

Has anyone seen much in fuel mileage improvement with the aero turbine muffler? If so what are your results.

 

Wouldn't count on it.

 

I had an aeroturbine 2525 muffler and resonance was terrible it smoothed my top end a little bit but not much and very little if any increase in fuel mileage. sounded good as long as i wasnt at cruising speeds then it gives you a headache