unfortunately i do not have the ready made adapter for kelisa. you can get the 4" K&N RC-3600 for RM190.00 but you may have to customize the adapter yourself.
What difrent between normal 13B engine and Cosmo Triple Rotor is't easy to instal to fd3s model and who have done it i saw at ah choi shop PDE 7007 how is't cost and how is't power goes?