No problem,
DKF Headers will work with OEM section 1 or DKF section 1
DKF Section 1 (S pipe) works with OEM headers and DKF headers But does not work with OEM section 2 (x-Pipe) w/o custom Flanges.
DKF section 2 (x-Pipe) works with OEM section 1 with use of adapter.
DKF Mufflers only works with DKF section 2 (x-Pipe)
For those that buy the DKF Section 2 (x-Pipe) and buy the adapter to use with OEM section 1 and later decide to upgrade to DKF Section 1 as well, I will offer a core Discount (you send the adapter back and if in good condition you get 60% of what you paid for the adapter towards the DKF Section 1 Price) If within 90 days 90% towards the DKF Section 1 price