Talaga, 2.25-inch inlet× 9-inch long, 4.50-inch outlet, double-walled T304 non-resonant stainless steel, is a decorative piece installed at the tail of automobile exhaust system. I have always defined the carbon fiber tail throat as such an ornament, and many car owners add carbon fiber tail throat to the exhaust pipe to look good. However, when repairing a McLaren part, I changed my view on this humble small part: using carbon fiber at the exhaust end of the automobile can avoid unnecessary losses and avoid spontaneous combustion accidents caused by excessive temperature at the exhaust end.