I talked to Lyndon at Wester's Garage about some changes to my computer tune and he told me he has a remote location in So Cal. He gave me the number and I called them up. The guy told me of a muffler called an Aero Turbine muffler combined with an AFE intake netted 60 rear wheel horsepower on an 8.1! That's right 60 hp. I find that hard to believe.
I checked out Aero-Turbine on their website and it shows a jet engine looking muffler that claims to reduce backpressure. In fact, it says it works like an expansion chamber creating a vacuum. It all sounds good, but isn't too little backpressure bad for low end? The sound clips sound kind of flatulant.
I was wondering if anyone on the boards has any experience with this muffler.
Aero Turbine (http://www.aero-turbine.com)