It amazes me how good converters are today. I see some very fast cars that I think they must have an 8" verter and to my surprise some are using a 9.5. I can say I really like my Dynamic 9.5 as it drives like a stock converter and works nice flashing about 4200 at the track which works nice for my street/strip combo. But I also see alot of street cars running 8" converters that surprised me how well they work on the street for some guys. Great technology today I guess. Ron