Bought this off a member and decided to go a different route. Its a Mini madness 4-2-1 header with a cat already welded on. The cat has been gutted, and a o2 simulator method has been installed so you won't throw a cel. Header $350
pictures are posted on the first post. Yes its been used, no gaskets as I didn't get around to ordering them.
Nice! That's the same type header I have, not many of them out there. As I understand it, they were designed by Comptech. Even with welded stock cat and a stock head I pulled 204whp after a tune, so it definitely helps. Enjoy!
Professor, can you post a sound clip? and did you just bolt on or did you add a cat? what exhaust are you running?