Technical I've got big, full nuts

[Crashtest33]

Hi peeps

Just to let you know, if anyone is currently installing or converting to fuel injection, you'll need to weld a captive nut onto the downpipe to hold the Lambda sensor for the ECU.
This captive nut is an M18x1.5. Obviously I needed to do this for Camel, but I had to order 10 nuts.
So don't buy any cos I've got 9 to shift.

Nick

 

[dave]

should have asked jetex sell Lambda Boss in ones

 

[Formula 91]

Be mindful that proper exhaust bosses have a flat face for the lambda sensor to seal against with a crushable washer. Check your 'big nut' has sufficient area to seal against. Also I'd recommend a coating of 'never seez' anti seize and lubricating compound, which will help loads if you ever want to take the sensor out without stripping the threads.