Originally Posted by britmog
Improvement of what goes in has to have improvement of what comes out to make any noticeable difference. Its the same on all my Mogs installing straight through exhaust with forced air intake on my +8 made a considerable difference to improved performance


Totally agree.
In my view an internal combustion engine is an air pump, with controlled explosions of fuel and air to make it go round.
So (within practical limits) the bigger the input and outputs of air and fuel for bigger explosions, the more power the pump has.