Advice Please: Installed baffles in full Termignoni S4RS now 2 quiet

[aaronb]

the holes are the path the exhaust takes.

more holes, less restriction, more noise

[Raux]

I bet if you just cut the end of the baffle off, ie open up the baffle as a straight through but with a smaller diameter you would get what you want. I don't think if you will get the torque back until you reduce the backpressure. but a smaller outlet should muffle it a bit. measure the difference between the outlets. then you could experiment with metal donuts prior to cutting the baffle.