997 and 997 S Mufflers

[Gundo]

Hi Loren,

Need your help - are the part numbers different for 997 and 997 S? also, what are the part numbers?

Thanks!

[Loren]

Yes, they are different but I do not know the differences.

997 - 997.111.221.03 and 997.111.222.03

997 S - 997.111.421.04 and 997.111.422.04

[Gundo]

Many thanks Loren.

Yes, they are different but I do not know the differences.

997 - 997.111.221.03 and 997.111.222.03

997 S - 997.111.421.04 and 997.111.422.04

[Nick_USA]

Many thanks Loren.

Yes, they are different but I do not know the differences.

997 - 997.111.221.03 and 997.111.222.03

997 S - 997.111.421.04 and 997.111.422.04

Now what is Gundo up to ????

[1schoir]

Many thanks Loren.

Yes, they are different but I do not know the differences.

997 - 997.111.221.03 and 997.111.222.03

997 S - 997.111.421.04 and 997.111.422.04

Now what is Gundo up to ????

Nick:

Whatever it is, I'm sure it's going to sound awesome!

Regards, Maurice.

[Gundo]

From everything I’ve seen, there is no difference internally between the mufflers.

The only difference is the outlet where the visible exhaust tips are bolted on.

We can speculate as to why they are different sizes - common guess is you can’t easily swap the tips without some modification.

I have confirmed though, that S tips slide right on to the Non-S muffler.

Gundo

Many thanks Loren.

Yes, they are different but I do not know the differences.

997 - 997.111.221.03 and 997.111.222.03

997 S - 997.111.421.04 and 997.111.422.04

Now what is Gundo up to ????

Nick:

Whatever it is, I'm sure it's going to sound awesome!

Regards, Maurice.