I've done a lot of researched online lately regarding 351W swap headers for a Fox Mustang. Everything from Acufab, BBK, MAC "out of business", Hooker slip fit O.K, CPR no info and KOOKS. I am considering the KOOKs 10251400 versus the KOOKs 10212450 stainless.

The KOOKs 10251400 are standard exhaust port flange and are steel. That is great as I have special coating for inside and out of the headers I will coat.

In comparison, the 10212450 require an adapter plate due to the slightly larger primary tubes and are stainless, nice but not needed; as they will be coated and are respectively much more expensive.

I would appreciate any experience folks have had installing and running the KOOKS 10251400 headers.

The car is already configured with a MMS K-member and I have the factory double hump trans mount and also a fab one that is larger and fits the under body closer.

Please advise

Thank you very much.