BMR 14-17 Chevrolet SS Rear Suspension Kit For 15in Conversion Kit - Black HammertoneStock stamped steel control arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires. BMR's non adjustable tubular control arms for 2008 2009 Pontiac G8 (LCA357) are MIG welded and constructed from DOM steel tubing, with laser cut mounting plates. This design gives you a lightweight, strong control arm that greatly improves performance. BMR's Poly bushings add a more responsive feel over the stock