This kit takes the hassle out of setting up a backfire blow off valve on your supercharger manifold if you are building one yourself. The kit includes a rear weld in aluminum backing plate, front cover plate drilled for Aussiespeed AS0060 conical springs and tapped for AS0219 bolts and a strip of AS0220 nitrile rubber.
Kit includes .
1x Front blow off plate. 115mm x 29mm x 12mm
1x Rear weld in plate. 155mm x 69mm x 12mm
2x AS0060 springs 18lbs each
2xAS0219 socket head bolts
1x AS0220 Nitrile rubber. 62mm wide x 125mm long