Standard GP200 Exhaust IGM Number

[Hong Kong Phooey]

Can anyone tell me what the igm number is stamped on a standard exhaust.
Cheers in advance

[Hong Kong Phooey]

Returning my GP200E back to factory spec and have just purchaced a NOS std exhaust with Innocenti APP.IGM.484/S stamped on the underneath. Before I get it powder coated just wanted to make sure it's definitely the correct one. The person I got it from said he had had it for approx 30 years.
If any one can confirm, this would be appreciated.
I know TUTTO does a remake which is also stamped but can't see the IGM number.

[TurboTrev]

My original innocenti GP exhaust has "Innocenti - SC21 - IGM 2105 S" stamped on the side and no other markings anywhere else. Tutto are also stamped the same on the side, but they have additional stamps on the back of the top fixing bracket. The Casa remade exhaust I had was also stamped the same on the side, but it had Casa stamped on the back if I remember rightly.

[Hong Kong Phooey]

Cheers Turbo Trev for posting the info
I wonder what exhaust I have then? I only want to fit the correct one for my GP as I am turning it to a bit of an anorak.
So if any one can tell me which model this belongs to, this would be great.
By the way it's not a clover leaf tail pipe but a flattened end like the GP type.

[TurboTrev]

Flattened end for a GP is obviously right, but I don't recognise the stamping? Are you a member of the LCGB - if so try posting your query on there? If you're not a member let me know and I'll post the query for you.

[Doom Patrol]

There might not be a correct number. We've already got two different numbers. Both of which were fitted to GP's. They might have varied throughout production.

[Hong Kong Phooey]

I am a member, but having trouble posting and need to get it sorted. So if you don't mind posting for me,cool. Cheers Turbo
But Doom Patrol could be correct and there could be two variants. But someone will hopefully know for sure.

[TurboTrev]

I am a member, but having trouble posting and need to get it sorted. So if you don't mind posting for me,cool. Cheers Turbo
But Doom Patrol could be correct and there could be two variants. But someone will hopefully know for sure.

Query posted.

[Hong Kong Phooey]

Thanks to Turbo for posting on the other site while I get my registration sorted out.
I have just seen on Fleebay under Nos gp items there is another exhaust with the same IGM number as the one I just purchased, from a different seller.
So fairly confident that there must have been 2 different IGM numbers, just waiting for Lamboman to check his other original exhaust which is stamped in the same place for final confirmation.

[TurboTrev]

The one on fleabay doesn't mention it being stamped "Innocenti" but yours is?