fender cabinets

I just got a Marshall MG100HDFX/MG412 slant cab half stack…?
and it sounds amazing. i also have a shitty fender cabinet and a really good peavey classic 50/212 tube, but both are blown away by the marshall. anyways, i’m in a band and we play all kinds of rock, but usually heavy medal. our next gig is two weeks away and i was wondering if anyone knew of a good pedal to “up” that amazing crunch distortion (not that it isn’t nearly perfect already)
i play it with an alpine white les paul,
if that effects your answer, haha.
you need to get an attenuator switch. That way, you can drive the tubes to full distortion, and keep the volume at a decent stage level. Those things are awesome!!!!
Avatar B112 bass cabinet with Fender Geddy Lee Jazz bass