@ Antiflag
Yaar, if money isnt a Problem, then go to OPTIMUM MOTORSPORTS or other famous tuner shops. If you'r low on money (like me ), then go to a reputed Silencer Wala and ask him to make one for you. Take a few Header pictures with you and show it to him and he'll know wat to do.
BTW, which engine is in your Club Cultus?