The adapter was made by cutting off the flange from the OEM exhaust and welding a section of pipe to it so it be slip fitted the HKS exhaust. I paid 350 for them to make the adapter and install the exhaust. I got it done at RPM exhaust in Carlsbad CA. They did an awesome job. They do custom...
I know this thread is old, but thank you for the write up. I just recently noticed that my steering wheel was slightly off center and its been bugging me. Now I got something to do this weekend.