Trunk mounted battery/ rear seat firewall regulations/track legal....

^^^^ Brian T battery box...
http://www.google.com/url?sa=t&sour...OrQBnm6dqHNTg4NOPCeOkrg&bvm=bv.71778758,d.cGU

Notes: Drilling the battery box for cable and vent tube entry is required. NHRA and IHRA approved when installed according to the sanctioning bodies rules. Inside dimensions are approximately: L- 10.75 in.; W - 8.5 in.; H- 9 in.
So,yes it is....