Folks I have a stash of the Rally bulbs (70w low and 100w high) available and am making them available with the purchase of the KD headlight booster harness.

The booster harness fits pretty much any vehicle with 9005/6 bulbs making that 90's through 2007 Silverado Classic.

HB kit benefits include

4 light high beam option
Improved light output
No strain on OE wiring