I used the Moroso blue box kit. It's the only kit I could find that was NHRA legal, since our cars don't have a rear firewall. It's a sealed box and vents fumes outside the car. I mounted mine in the sparewell in the trunk, and also mounted my master cutoff switch (required by NHRA when relocating a battery) to it. I'll take some pics when I get a chance if you like.