installing a header

Hey everyone. I recently pulled a motor for a friend and his payment to me was a 4-2-1 airmass header. Both motors are LS’s, I was just wondering will it bolt to the cat in my car without modifications?

I just don’t want to get it all torn apart and not have it go back together because I do not have time to take it to a muffler shop anytime soon.

Thanks
Al

I hope both cars are 92-93. Bolts can be stubborn, be prepared. Don’t forget the anti-seize lube!

Yes, its a 92-93 header, but will it bolt to the cat directly without problems…the only thing im worried about is the flange. I can’t remember if the factory one is welded at an angle, or if its straight. The headers flange is mounted at an angle.

Al

judging by your name, you have a 93 integra. So if it is a 92-93 integra header it should fit without modification. the only difference of 90-91 and 92-93 is the oxygen sensor placement, and I think the length too. It should be a bolt on affair, but be ready for those nice rusted on bolts :bored: :gunright: Good luck!