Exhaust modification on CB 1100 RS

[Saltani_imp]

I’m sure people have noticed that the new CB1100 come with completely sealed (seamless/welded) pipes. Any suggestions on ho to modify the mufflers to make them a little louder??

I looked through the end opening and found an area that could have a hole drilled in. Anyone tried that?

[Bheezy27403_imp]

Yes. There is a thread around here somewhere where a couple members tried a few things. Use the search feature to find it. Or some other industrious member will add a link here eventually. I'm not sure the results were overwhelming because the main source of sound dampening comes from the cat which is upstream in the system.

[Cormanus]

Not sure anyone’s done anything with the 2017 bike exhausts.

[Lord Popgun]

I couldn't find anything.

[Bheezy27403_imp]

Ah, didn't know he was asking about the '17's.

[itstuantran_imp]

If you look through the tail pipe with a flash light, you will see there are 3 holes with dia approx 6mm each. What you should do is to use a long rod of steel with larger dia, say 8mm, to enlarge those 3 holes, sound will be improved. That what i did.

[Cormanus]

Apologies itstuantran. I forgot you’d modified your RS.

[itstuantran_imp]

No problem Cormanus, it's just a little play on my stock exhaust, i've replaced the stock exhaust with full titanium 4-1 system

Apologies itstuantran. I forgot you’d modified your RS.

[jtopiso_imp]

If you look through the tail pipe with a flash light, you will see there are 3 holes with dia approx 6mm each. What you should do is to use a long rod of steel with larger dia, say 8mm, to enlarge those 3 holes, sound will be improved. That what i did.

I think you mean "changed"

[Saltani_imp]

If you look through the tail pipe with a flash light, you will see there are 3 holes with dia approx 6mm each. What you should do is to use a long rod of steel with larger dia, say 8mm, to enlarge those 3 holes, sound will be improved. That what i did.

how did you manage that? drill? hammer it through?