Buying a 2nd hand exos?

Buying a 2nd hand exhaust in singapore?
It requires the LTA approval,
How to go about doing it?

1. Install your newly purchased exhaust system at any garage.
Fee cost ard $30 to $70 depending on which garage you go.
2. Have your Jasma or exhaust certificate done for transfer of ownership
at the main importer. Transfer fee varies. For fujisutbo is $50.
3. Go the your nearest Land Transport Authority to have it checked
for emission and noise etc. Pay a $52.50 for inspection.
4. Passed! You go home a happy man.
4a failed!!! damn... dismantle it or face a fine!

You have 1 month to go to inspection after installation.
If within 1 month you never go, and you got caught by LTA.
Good luck to you.