This Pedal is currently available.
Distortion with Top Boost
From: https://www.ehx.com/products/metal-muff
"The ultimate metal distortion pedal. Three powerful EQ bands sculpt the mids and 6 controls shape the sound precisely for your groove from slithering mercury to lead belly blast furnace dross. Its unique Top Boost adds serious bite with its own control knob and footswitch so you can kick it on for searing leads."
From: https://www.ehx.com/assets/instructions/metal-muff.pdf
The  Metal Muff utilizes three powerful EQ bands, including a midrange control designed for  perfect  contouring  and  beautifully  sculpted mids.  The  Metal  Muff  offers commanding bass and defined high end—coupled with user-controlled distortion from pinched-edge to totally crushing—making it a heavy metal gold mine.
- CONTROLS -
DISTORTION CONTROL
 – adjusts the amount of input gain.
BASS CONTROL
  –  provides  up  to  14dB  of  cut  and  boost  in  the  bass frequency range.
MID CONTROL
  – provides  up  to  15dB  of  cut  and  boost  in  the  middle  frequency range.
TREBLE CONTROL
 – provides up to 10dB of cut and boost in the treble frequency range.
TOP BOOST CONTROL
 – provides an extra ‘bite’ by boosting a narrow band of high frequencies. When Top Boost is inactive, the Top Boost control has no effect.
VOLUME CONTROL
 – sets the output level.
TOP  BOOST  FOOTSWITCH
  –  Engages  the  TOP  BOOST  feature  of  the  METAL MUFF. The corresponding LED is lit when TOP BOOST is engaged.
BYPASS  FOOTSWITCH
  –  Selects  whether  the  METAL  MUFF is engaged  or bypassed. the corresponding LED will be lit when the pedal is engaged, and dark when bypassed.
INPUT Jack
 – This ¼” jack is the audio input to the METAL MUFF.
OUTPUT Jack
 – This ¼” jack is the audio output from the METAL MUFF.  When the METAL MUFF is in Bypass mode, the OUTPUT jack is connected to the INPUT jack through a buffer.
These merchants probably sell this module. Huh?