19 Soul

[Soulseeker]

Hello. I have a 19 Kia Soul with a 15 inch Blackbrick, tuned to 32hz in a ported box. Plays well at 45-50 hz. Ran by a 3k Stemson. Right now running two 6.5 Ds18s in door with Ds18 amp. Looking at modifying doors to hold three 6.5s each. There are few and far in between Soul builds. I have found a rebassed Katy Perry song Dark Horse hits HARD. Any help here would be appreciated.