Finding the right lambda sensor

Hi

I've fitted a abf engine into a mk2 golf but the only place I could Mount the lambda sensor is a bit to tight I was wondering if you can get a small or stubby sensor so I won't damage it when driving any help

Thanks

 

You can buy the threaded boss that it screws into, you just need to cut the exhaust where you want it and weld it up. Stick a bolt in the original threaded boss to seal the system.