Seat support add on?

[TOOLOW91]

Just weld up the stock torque boxes and move on. Battle Boxes are for all out drag cars with a lot of rwhp. The stockers are just spot welded so if you weld them out (I would skip weld them to avoid too much heat at one time), clean the welds up and paint them back up (in the car and under the car) you will be fine. If you are still using the upper control arm mounts weld them out as well. Plenty of 500 rwhp cars that are just welded up.

Exactly . Weld them up do the subframes and move forward

 

[Scrapla347]

I installed that kit. I used the bolts instead of welding it in. My seat feels great and no more creaking and leaning. I also have sub frame connectors that brace the rear seat bolts as well. Take the extra time and paint the brackets before you install or at least primer them.

 

[Potomus Pete]

Do the sub frames make a big difference.

 

[Monkeybutt2000]

Do the sub frames make a big difference.

HUGE difference.

 

[TOOLOW91]

Do the sub frames make a big difference.

HUGE . Even in a hatch and coupe car . Vert is night and day

 

[limp]

Appreciate all of the input here.... MM full subframe connectors are sitting under the car, ready to install..
I will take a look at welding up the weak areas of the control arm torque boxes when under the car next....
Some home projects need to be addressed first..

Projects like assembling my new storage shed
finish prepping for the concrete guy
and finishing my soffit upgrade...