I use a catch can on my supercharged Camaro, and I also used one before it was S/C'd, simply because it's direct injection and there's no fuel spraying the back sides of the valves, not to mention any of the intake tract, to help wash the gunk away.

John B.

'87 Raider 2.6 Turbo Auto, Under Construction
'95 Montero SR, 35x12.5/15 BFG M/T KM-2's, Rock sliders, Qtr panel chop, gas tank lift, 2" BL, Aisins, 5.29s
'95 Pajero Mini
'98 Montero Winter Ed.
'04 Cadillac XLR
'03 Kawasaki ZRX1200R
'60 Ford Falcon 4Dr