Knock sensor placement on Mitsubishi 4b11 engine

Hey guys,

Where have you guys found to place an aftermarket knock sensor on the 4b11 engine from the evo x?

Does the block itself have any spare bosses that can be used? If so can you give me an idea where it's located.

Thanks

No real space on the block that is easy to access.

I remove the engine hook on the exhaust side of the head and use that bolt hole.

No ideal but works well.