Originally Posted by BMEP
On the dyno it made an extra 16hp to the wheels. There was no need to remap the ecu.
Originally Posted by BMEP
The main idea of the spacer was to increase the distance between the trumpets and the inner wall of the plenum as this is only 10mm.
that's what it actually does, but what is the point of doing that? as i say, it's to give more even air flow to each cylinder.