I just got my Works Exhale HFC, Tanabe Medallion Turning, and Megan Racing Dp. On an Evo 9, where do I have the 02 bung welded?

 

before the hfc

 

Thanks!

 

Be sure to not weld it lower than "3 o'clock". Any angle lower than that, and you risk moisture settling within the sensor causing it to foul out earlier.

 

I have mine about 3 feet from the O2 housing. From what I been told thats about the ideal place. Scream8 is correct, Have it welded it in between 1-3 o'clock. Kind of look out where you put it too. remember that your exhaust will move to make sure that actual 02 sensor wire isnt rubbing against the bottom of the vehicle.

 

I just had mine welded at the back of my downpipe at 12 oclock. My WB came with a deep bung, the shop welded it partially in the exhaust. When the 02 sensor is installed very little of the tip is exposed. Are both of these ok?

 

I have mine in a downpipe right before the Test pipe at 12 O'clock.

 

Downpipe before testpipe is a pretty common place, I plan on getting mine there.

 

Sounds OK