i just installed an rnr tbe with o2 eliminator and i have the buzzing sound when giving it gas. my thought it was just the increased exhaust flow? the o2 housing? i still can see the donut exposed slightly looking where it meets the o2 housing from up top but the bolts are torque to specifications as i know the two are not supposed to touch. maybe it is an exhaust leak. for all those experiencing the issue do you have tbe? o2 housing?

 

Did you make sure that you cleaned off the old gasket first. You want to see the original finish on both contacting surfaces before you install the new gasket, or there will defenitely be a leak. Also I have heard of people saying that they are getting this noise out of a full exhaust, which is possible due to the increased gas velocity.

 

Yeah i have the same sound i had with the rrm test pipe. I have a full cat back now so i guess it must just be some of the engine noise resonating through the piping... Oh my friends integra also had the same sound when he got a catback also.