Tetroxide Injector

If at a dead stop my strafe acceleration seams unadjusted by Tetroxide Injector.

Aside from compensating for Shield Projection splitter, which you don’t even need to do.

If the injector doesn’t help unless you are pressing W, what is it good for?

I ask because I feel that this module should be good, but I feel it isn’t better than activating afterburners for 1-2 seconds.

It only affects forward/reverse acceleration. And remember it is percentage based, so its effects are typically more noticeable on ships with high base acceleration (main use is on adaptive tanked interceptors).

It helps you to activate adaptive shield faster and in theory shortens time you need to go from A to B because you will achieve max speed earlier.