[ChevyHighPerformance]

I forget about Corsa. Corsa uses a resonator and a muffler like the stock system. I never spoke to Corsa about gains or cost. If you want to remove the stock system as one complete piece, jack up the frame in front of the passinger rear wheel. The idea is to increase the clearance between the rear axle and the body to remove the stock system from the rear. You won't need to lift the rear wheel off the ground.