I don't think a difference (a positive one anyway) will be realized.

JMO

I believe that plate creates an eddy that enhances flow and improves scavenging.

Those anti reversion rings help keep exhaust pulse down,  controlling water reversion, but more importantly,  helps equalize the exhaust pressure from cylinder to cylinder.

If it was me personally,  I would keep them. Now if you were supercharged or turbocharged, different argument all together.

Could be FOS.

GT

I always like your disclaimer, GT. Thank you.

propless is back on here.  Need to stay on point.



GT