Suspension & Brakes - Questions on torque arms.

Ok I have two cars.I am stocking out one and selling it. On one car I have the BMR Extreme Duty Torque Arm. On the other I have the Spohn Torque arm.The spohn bolts to the tunnel brace area on the floor board.Is this a very sturdy spot. Which one of these units is the best. I am leaning towards the BMR. I need something that can take alot of abuse.
Dave

Where does the BMR Extreme Duty Torque Arm mount?

The BMR should have a crossmember that welds to the SFCs.

I have used both, and the BMR Extreme looks indeed to be the stronger unit, but I have never had a problem with the Spohn torque arms, I use one on my car.
Anyone out there ever had problems with either one? Bob