Why do we refit an exhaust pipe of our vehicle?

The main purpose of refitting our vehicle's exhaust pipe is enlarge its replacement,which increased its air replacement and air inhalation.

So the obvious effectiveness,namely,its torque will be increased,the voice will be more louder together more strong power for changing the structure of the muffler.

The most exhaust pipes used from the original factory is investment casting with iron material,the quality is very bad while the repacked one used in the material of Stainless Steel 304,which will not be accumulated carbon in the engine,reduced its loses and lasted its long life.

So the suitable refitting your car's exhaust pipe will not only enhance its horsepower,but more importantly is beautiful appearances.The universal materials are used in the market is Stainless Iron 409,which is more bad its material,but it is more quality than the original factory.they are used in the pick up truck with  larger replacement in the US,because of its lower price,it will be rusted after long time using,so it must throw its away to buy a new one.

The most used in the field of refitting exhaust is SS 201,which is more quality than Stainless Iron 409,it is absolutely used in the normal temperatures:(non normal condition:driving in the seaside,there are more sea wind in the air,snows in some cities,to escape freeze on the road,it will be rusted while throw salts on it).The stainless steel will be broken for its toughness，but most people use them for its high cost performance.

Customer who use in the material of SS 304 in repacking exhaust pipe is a tasteful men or women. SS 304 is more anti-corrosion than SS 201.But it will not be rusted in 100%,so called stainless steel is not be rusted,the right answer is resistant stainless steel one,that's to say they actually are not easy to rust materials with different numerators compare with other materials.And the pipe will be changed to purple after high temperature gas flow through in the combustion chamber while SS 201  is black one.

There is another specific material for refitting exhaust pipe named titanium,seldom people use it. The price is as highly as reaching 5-6 times than stainless steel,which are often used in aerospace and airplane industry.Why do the vehicle also use this material?Because this material is as lightly as  2/3 time than stainless steel,which will also take more power with reducing self weight of the car.The most important thing is that it will never be rusty with more good voice than stainless steel.And there will be an excellent color of purple after the air flow travel through the pipe in the high temperature of the engine.