Hey folks. I searched this forum and found some recommendations for this stuff from NAPA that supposedly screwed right in to the fuel rails. It sounded really good but when I went to NAPA, I found the stuff (package of three things about $39), but the guy said I also had to buy some kit to use it. The kit he said was something like $300. According to the clerk, it had a gauge, and a tool to open the one bottle similar to the ones used to open a bottle of freon. Is this right, or is this guy crazy?