Originally Posted by cobrajet429
You want too still cram as much air as possible with a scavenging affect. Air is still a factor in power making.
Right, and having less exhaust backpressure, by removing restrictions in the exhaust system will increase this effect to a point.
People are getting all bent outa shape about loosing back pressure in these Focus motors, it's not as much of a foctor as say a Honda. Opening up the exhaust systems on these new Focus engines is really going to wake them up.