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Review title: Saved my header from welding
Product review: vehicle 2000 Honda Civic SiI thought I was going to need a new O2 sensor and bung but it turned out it was only the O2 sensor threads that were corroded (120000 miles). With the header off the car I was able to chase the threads easily. If the header were still on the car it would be handy to have a ratcheting combination wrench.An earlier review stated that the thread pitch was wrong because it does not thread through a brand new bung easily. I believe it was designed this way and in practice it did a perfect job on my header. The O2 sensor screwed in and sealed perfectly.
