Quote:
Originally Posted by GreatOldOne
Wow - seeing the metro and the dual side by side really reinforces how much more assistance you'll get.
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My calculations, based on the surface area of the diaphrams, assuming there is one at say 6", and one at 5", suggest around 55% more boost.
However, I read in one of the adverts the gain is only 25% more?
I'll eagerly await your proper road test!
Mike