oxygen sensor fittings

Q: Do your hedder model 88398 come with an oxygen sensor bungs installed?

thanks.

A: They do not come with a bung. However, you can purchase a reducer with the O2 bung installed already so you do not have to alter the header which voids warranty. 3" collector with 2" exhaust #21129, 3" collector with 2 1/4" exhaust #21117. 3" collector with 2 1/2" exhaust #21143, 3" collector with 3" exhaust #21134. Hope this helps!

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