stiffening pieces to weld into frame
Badart on this forum makes stiffening pieces through his company http://www.dillingerchassis.com/. Lower radiator support and J bars to stiffen the front end. He also made me a set of shock tower to firewall braces, XV style. Probably not as good at stiffening up the front end as the J bars, but they go inside the fenders so you don't have to relocate your battery. Little more stealth too if you've got a more stock appearing car.
Badart on this forum makes stiffening pieces through his company http://www.dillingerchassis.com/. Lower radiator support and J bars to stiffen the front end. He also made me a set of shock tower to firewall braces, XV style. Probably not as good at stiffening up the front end as the J bars, but they go inside the fenders so you don't have to relocate your battery. Little more stealth too if you've got a more stock appearing car.