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I believe is a Bisimoto exhaust manifold i just can't find too much info on it. is there any way i can tell for 100% sure its a Bisimoto header without unwrapping it? i never used it but my friend did it has maybe like 5 miles on it lmao. And if it is a legit Bisimoto how much would it be worth? i cant even find one listed for sale anywhere. Thank you in advance!
it's a 1320/plm bisi replica. I've never seen bisi do a megaphone reverse cone on these style headers. Also authentic bisi had the O2 bung on the runner