will post pics later but phil can tell you too. mine is 1 10 lb bottle stuffed at a 45 degree angle in the right rear corner on the truck. directly adjacent to the factory amp. i did this because i have a glass sub enclosure fitted inside the spare well. it is very tight but very original compared to the other viper setups. i was thinking of installing a second bottle directly where the factory amp was since i dont use it anymore and removed it years ago. to give it a balenced look. i will post photos later on. goodluck