Pedals that stack with the Electro-Harmonix J Mascis Ram's Head Big Muff

Z.Vex Super Hard On

Put Z.Vex Super Hard On in front and the fuzzy tone leans further toward clean boost

Caroline Guitar Company Somersault

Keep Electro-Harmonix J Mascis Ram's Head Big Muff's fuzzy voice out front: Caroline Guitar Company Somersault goes after Electro-Harmonix J Mascis Ram's Head Big Muff in the signal chain so its modulated voice doesn't muddy it

Walrus Audio Ages

Walrus Audio Ages layers clean boost onto an already fuzzy signal

Wampler Cory Wong

What Wampler Cory Wong brings here leans toward clean boost — that's worth building a pairing around

Cusack Music Delay TME

Put Cusack Music Delay TME after Electro-Harmonix J Mascis Ram's Head Big Muff in the signal chain, clear of Electro-Harmonix J Mascis Ram's Head Big Muff's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Pigtronix Echolution

Pigtronix Echolution's modulated voice goes after Electro-Harmonix J Mascis Ram's Head Big Muff in the signal chain — it's not there to compete with Electro-Harmonix J Mascis Ram's Head Big Muff's own fuzzy character — goes in the amp's FX loop (or last, into a clean amp)