I got (2) Rockford Fosgate T20001.bds, rockford fosgate bld line driver, 2 kinetic hc2000 racing series batteries, big 3, 220 amp alternator and looking to put a wall in my vehicle. Want to go with (2) 15 BTLs but not sure what to pick when it comes to the options. I know i want to pick daily for sure but what shoulld i do when it comes to p chamber, cooling, and my NUMBER 1 concern: heat ring. all input is definately helpful!

Read the tech section...it explains it very well on the website, and on here as well.

Read the tech section...it explains it very well on the website, and on here as well.

ya i read about it man im just not understanding if i should go with the heat ring or not...like say i get the p chamber and cooling and skip the heat ring how would that compare with one that has cooling, p chamber, and heat ring?

The inductance heat ring lowers the inductance of the coil a bit and helps in the transient (snappy sound) response it also raises the compression ratio of the gap inside of the motor. The more air is compressed the more it kicks off heat...