GRBT and the magic muffler:
Actually bankshot, this whole idea of a muffler back pressure being a huge restriction of HP, or a big benefit to mileage, or reducing emissions, has not been proven and doesn't really make a lot of sense.
You can take the manifolds off, completely reducing exhaust system back pressure, but it does not solve any of the above noted issues. It would be very loud, of course, and soon burn out the exhaust valves however)
Re-introduction of some of the exhaust gases back to the engine is not new, but hasn't ever shown to provide great benefit either.
This whole biz model is based on folk lore, or worst, imo. However, they have been able to sell stock in the company to pink traders that are looking for the next momo run. These traders could care less about any facts or truth...just like the company. rotfl
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