Modified XJET VS Downstream Injector Before Lance

If I put a downstream injector before my lance will I be getting the same sh draw as an XJET? Because an XJET is $180 and a downstream injector and the parts needed to modify it onto the gun will cost less than $40.

I always assumed because that is the simplist logical conclusion to make when researching an x-jets function, that no it would not work. :thinking:

Gotcha I guess an Xjet is different from a downstream injector. Do you know why? thanks for replying!