A little off topic but one thing I did was put a flange on the tail pipe so if I wanted to I could drop the whole system off the car in minutes. Just have to watch the axle brake hose on the driver's side mine is only 1/2" away I should have moved the flange down. Its real easy to do, put flanges on pipe, bolt them together with washers in between flanges, hold in place with magnets, weld, take out bolts/washers, cut pipe between flanges with saws all, clean up with angle grinder, done.