How to Make the Exhaust Backfire Sound?

[McStephanie]

Backfire sound is the exhaust popping noise that occurs when you press the accelerator hard to increase the RPM and then suddenly release it, resulting in a muffled 'bang' sound from the exhaust pipe. Here is some related information: 1. Exhaust Note: The exhaust note of a car originates from high-end, large-displacement sports cars. The structure of the exhaust system starts with the exhaust manifold, connected to the catalytic converter, mid-muffler, and rear muffler with tailpipe. 2. Reasons for Different Exhaust Notes: Modified exhaust notes vary because some exhaust systems eliminate the muffler after the catalytic converter, directing exhaust gases straight to the tailpipe. When the engine operates, exhaust gases resonate through the exhaust pipe, producing the audible exhaust note. However, the number of cylinders, displacement, and working method of each engine differ, leading to variations in the exhaust note. Modified exhaust pipes are generally categorized into internal backpressure mufflers, external backpressure mufflers, S-type mufflers, and straight pipes.