BMR Adj. TQ Arm VS. BMR Extreme Adj. TQ Arm Which Is Better?

[NeeD4SpeeD]

I know the Torque arm gives you retartedly good traction but i see on the BMR website that they have 2 kinds of TAs.,,,

BMR full length adjustible torque arm

and

BMR Extreme adjustible torque arm

The first one is $375 but the second one is $595 which is EXPENSIVE!!!

Also i have the TSP rumbler TDs exhaust under the axel and out the back with Pacesetter LTs so i NEED the TA to clear my LTs and Aftermarket exhaust!!!!!

So i wanted to know if there was ANY difference between the two and if either one will clear my aftermarket exhaust and headers.... If not i'm just going to save my money and go with the BMR full lenght adjustible not the extreme b/c that money i could use toward other suspension mods!!