Black (M or K) thanks for posting the latest info from the Aero website. I'll briefly repost part of it and then I have a comment to make.
"This months feature is to introduce to you our STX 523 2.5" to 3" Muffler. The design of the STX 523 is a unique design that provides a simple way of taking a standard 2.5" inch exhaust system and increasing the output exhaust to a 3" inch high output system. This rare configuration will actually increase the flow of your exhaust system dramatically.
Through extensive testing we have found that simply taking a stock 2.5" exhaust system and increasing the system to a 3" outlet half way through the system increased the exhaust flow of all vehicles tested. This scaled increase in exhaust system size produced by the STX 523 muffler allows for the gasses to draw more quickly to the outlet of your exhaust system. Thus increasing Horsepower output, Torque, and even an increase in Fuel Mileage as compared to standard systems."
Aero has had an agreement with Utah University for quite some time to have members of the University doing further research on the airflow through Aero Mufflers. They try lengthening the chamber, they try changing the angle and frequency of the internal fins, etc. Obviously some months ago they tried something new, taking a 2 1/2 inch intake into the muffler and then enlarging the muffler and using a 3 inch outlet. And using 3 inches for the remainder of the exhaust system. It didn't happen overnight, and it didn't happen this holiday weekend. It has been progress made without fanfare. And now it is being made by the factory, making by my count at least 12 different models of Aero Mufflers.
From what they now say on the website the STX model 523 is one more breakthrough in the world of aftermarket mufflers.
This is not the action of a bankrupt company, coming out with new models and new innovations while moving to larger quarters for the warehousing and office space. This really impresses me. One more marketing tool for worldwide expansion. I know what I own.
Walk
