Yea so i bought a 92 integra from this guy and it had an intake filter and thats about it. When i started to rebuild the engine, when i was taking off the header i noticed it was a 2 piece 4-2-1 header. It looked oem because it is rusty and orange. But when i went to loosen the bolts they came right off leading me to think that it had been replaced. Let me know what you guys think. Thanks

 

that's stock