TTI 2.5" Exhaust system install....many problems

On mine I have the filter facing the rear and angled slightly downward. It runs parallel with the frame and sits slightly higher than the frame rail seam.
I put the adapter on finger tight and then slid the pipe in place. Adjusted the filter and then removed the pipe so I could torque the adapter. Then slid the pipe in and bolted it up. No need to remove torsion bar on mine. That could vary depending on which manifolds you have. Mine are stock 73 340.