MT-2
http://www.roland.com/products/en/MT-2/
Features dual-gain circuitry for thick, tube stack distortion with heavy mids and lows and long-lasting sustain. A 3-band EQ with semi-parametric mids takes your sound to the extreme.
BF-3
http://www.roland.com/products/en/BF-3/
The new BF-3 Flanger pedal gives guitarists and bassists an updated version of the classic BOSS flanger with the thickest stereo flanging sounds ever. Two new modes (Ultra and Gate/Pan) create flanging with incredible depth-even Slicer-type effects and sounds that seem to swirl around the listener. An instant classic.