Just had an Aero Turbine Exhaust put on my truck. It is supposed to boost horsepower, fuel economy, and give a better sound. I keep very accurate records of my fuel economy so when I am done horsing around stoplight to stoplight and gunning it every chance I get I will post my findings.
In the meantime I really do think the engine is breathing a little better and it seems that I end up ten miles over the speed limit before I realize that I am. As for the sound it is absolutely sweet. I had the stock resonator removed because this model came with a resonator.
I originally ordered the non resonated model (2525) from Parleys Diesel Performance and was told I would get it in a week. A week went by and no Turbine. I called and talked to them and they checked into it and called me back. Seems the manufacturer is backed up and it would be another week. Another week came and went and still no Turbine. I called again and they checked into it and called me back. The manufacturer was still back-logged but could ship a resonated model, overnight, for no additional charge. Since I really wanted to get a better sound (better than stock) out of my truck (read audio bling), and the resonated model was nearly fifty dollars more I said sounds fair to me.
The Turbine showed up here a few days ago and I had it installed this morning for $80. I was a little worried about how the resonated version would sound but I knew I was going to be happy when three mechanics walked into the waiting room grinning ear to ear and one of them said "Well buddy, your days of sneaking in late at night are over."
The truck actually has a set now and it sounds absolutely awesome. I love it. At this point I could not care less if the truck got better mileage or not off this after market addition - as long as the mileage does not go down. The truck is quiet at the lights and growls/roars/rumbles on acceleration. The noise is very noticeable while accelerating but once I hit cruising rpm it is not intrusive. I am somewhat relieved in the results, especially considering how much louder the non-resonated version might have been.
The wife was out running errands while I had this done (take notes my friends - this is the way to do it) and I timed it just perfect. She just got home and has not heard it. Going out to vote in about ten minutes so I will see what her reaction is. She already feels that the truck is competition. To be honest - no competition there - the truck has not burned dinner yet and never cops an attitude. Not making any insinuations here - just sayin's all.
Still grinning and going to try and get pics if anybody is interested.