[Chris@VargasTurboTech]

Tired of burning out O2 sensors on your pre-turbo O2 installation such as BMW N54? Well, now you do not have to. Our Thermo-Isolating O2 bungs either screw into your existing O2 bung, or weld into manifold or header isolating your O2 sensors from the direct heat a pre-turbo sensor sees. They do this by reducing the exhaust gases flowing over the sensor, as well as lift the element away from the hot manifold with 8 heat sinks for weld-in, and 4 for screw in. All VTT Thermo-Isolating O2 bungs are machined from Billet 310SS for extreme heat resistance. Screw-In compatible with any existing O2 bung. Available now through website or ebay store.

Note: Bungs must be clocked with the hole facing into exhaust flow from them to work properly.

[Andreweatstacos]

Will this fit the Doc Race manifold on a 135i?

[Renner335i]

I would like to know this as well

[Chris@VargasTurboTech]

You'd have to check clearances on your particular car/turbo setup.

The screw-in bungs will protrude 1.15" above the existing bung. The weld-in bungs will protrude 1.57" above whatever they're welded to. Both are the same diameter as the O2 bung; 1".

Thanks!

Chris