Ok, this may sound like a really dumb newbie question but...
Why does a free flowing exhaust give more power?
With my limited knowledge of these things I understand that SSIs provide a better escape route for the exhaust gases. But I thought power was generated on the down stroke after the mixture got ignited.(thats the limit of my rather sketchy knowledge of these thing's
TIA, Alex
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911 2.7S Targa
email:alex@cascade.f9.co.uk