Originally posted by Tone
1-6 hp - not bad but almost a third of the HP improvement of the Powervault...
I tend to be rather skeptical about all manufacturers' claims. However, if, as they claim, the Aero-Turbine muffler really is the only one on the market that actually increases flow more than a straight pipe with no muffler at all, then it would be hard to imagine any other one boosting performance more. Many variables affect HP measurements. Any mufflers that use internal baffles (like Flowmaster, etc.) necessarily restrict flow at least a little bit by their design. In any case, don't you think the converter would become the most restrictive link in the flow chain? Regardless, PV wasn't an option for us given the strictly enforced noise ordinances where we live.