Replacement Soundbank Engine Questions

[TwoSixZero]

It's TwoSixZero again. I've been really wanting to use some SFX mods for awhile now (such as Traditional DK and Diddy, Modern Sonic, etc.) Many of the ones I want to use, however, say in their descriptions that I need a "Replacement Soundbank Engine Code". Does this code only apply to some SFX mods? I ask this because I've got a Bowser's Inside Story SFX mod for Bowser that doesn't require it.

If someone's got this "Replacement Soundbank Engine Code", tell me, first, if I actually need it for the SFX mods to work. If so, then post a link to it. Thanks in advance!

[Ricky (Br3)]

Yes, you will need it for all SFX hacks, if you use Gecko.

Some PSA don't need the replacement sound engine because the files they use are already on the ISO.