Hello, I have a 00 Civic Vp. Completely stock. It's my wifes driver. The stock manifold cracked around 80,000 miles. It cracked at the 02 sensor, and wrapped around the manifold. I replaced it with a stock over the counter deal from Napa. The car turned over 127,000 and now I noticed when driving cold it has an exhaust leak again. I pulled the heat shield off to reveal a crack in the same place.

Do they make a good manifold, or a 50 statelegal header? I want it to run good of course, but it's no drag Civic. Ithas to pass a smog test. Any suggestions appreciated. THANKS, Jason.

 

wow i dont see how you guys are geting these things cracked.LOL she driving thru large puddles alot or something?

if you dont want to replace it for awhile then go to a dealership and buy a brand new header from them. and tell her to stop driving thru large puddles.LOL