The repair method of exhaust pipe deformation is as follows: 1. Complete repair: You need to go to the store to remove the exhaust pipe from the rear end of the three-way catalytic converter to the rear muffler, and then install it after setting. 2. General repair: push the left tailpipe forward steadily, pull the right tailpipe outward, and then fix it. Exhaust pipe is a part of engine exhaust system, which mainly includes exhaust manifold, exhaust pipe and muffler. 2. The anti-rust of automobile exhaust pipe should be not only waterproof, but also anti-rust. The best way is to rub some antirust oil, which will be more comprehensive. The rust prevention of automobile exhaust pipe maintenance can be carried out twice a year, which greatly ensures that the exhaust pipe does not rust.