There is no space for anything, the seat is flush with the body, the rear seat has the gas tank located underneath it, you have access to the fuel pump when you lift the seat, so i don't think you'd want a nitrous tanks there anyway.

~Alex


~Alex Ex- SVT Driver627 MUST SELL!!!LOCAL: Pre-98 MOLDED trunk Polk db speakers Corolla parts LED Underbody Kit PM 2000 Green CSVT gone on 2/17/06 2001 Toyota Corolla (SHE RUNS!!!) 1989 Mustang LX 5.0