x3 on greazzer.
I sent new 265 Monark nozzles from mercedes source to greazzer along with injectors to be rebuilt for both of my 300SD's.
I've also installed his performance overflow valve in both of the 300SD's as well.

IIRC, greazzer did have 315 nozzles for sale at one time.

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78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022