Quote:
Originally Posted by gasterus
I'm not trying to hijack this thread, but there is another supplier called innotech exhaust that makes valvetronic exhaust for BMW M and Porsche cars. I have installed their exhaust on my M3 and is pretty satisfied with their product. I think Meisterschaft also came up with a valvetronic exhaust for the E9x M3.
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Never heard of innotech, so dont know what they use.
I know the meistershaft one is an electronic valve, not vacuum valve based system. The electronic valves tend to not be very reliable over time. I know their systems are made in Korea as well.