Interior and Upholstery subwoofer layout planning

[momma_mils]

i plan on throwing some subs into the mustang and was wondering if it was even possible to cut this (circled red) or not i noticed it when i took the back seats out and was wondering if theres like cables or fluid lines i gotta watch out for

 

[squeak93]

I am no structural engineer but i have to think this is crucial for chassis rigidity and strength. I do not recommend.

 

[nickyb]

If you have to ask you shouldnt.