What are the mainstream brands of automobile exhaust pipe modification in China?

I don't know what you mean by domestic mainstream, but it should be sold in the domestic market. Abroad: American mango exhaust, Japanese FGK HKS, European eissmann, Remus, CGW, JDC, China RES, Taiwan Province IPE, Jushi, Lang Wei. Japan's FGK produces many Japanese cars, while Jushi mainly works for others. Unfortunately, many cars have no sound and fewer models. Remus and eissmann only need tail cutting and exhaust, but the price is also cheap. IPE is expensive, with many exhaust vibrations and low cost performance. CGW works well, but the technology is not good, and the vibration is great. RES is quite satisfactory. Many cars can't get out. The advantage of RES lies in its complete model. I have everything you want, but nothing is specific. Lang Wei's exhaust is unknown, and its workmanship is above average. The main characteristics of this kind of exhaust are the exhaust sound effect and little vibration. Cost-effective, only do some hot modified models, more professional. JDC is a manual exhaust starting price, which is more flexible by taking a customized route, but it is a regional brand, which only serves local and foreign delivery, which is very troublesome.