With polished tail tips
For ATENZA （GJ2FP / GJ2FW :6MT&6AT, GJ2AP/GJ2AW:6MT&6AT）, Increases 7-8house power.
Flange φ60 - Tail φ100
Close sound level: AT 73db, 6MT 72db
Acceleration running sound level: AT 70db, 6MT 67db
Knight Sports Legal Muffler FEATURES:The development of "sports muffler" started with "grabbing engine characteristics" and thorough verification of "normal muffler".
For the muffler's biggest mission, "Decrease the sound", had to know the "sound volume of the engine" and the structure and capacity of the "normal muffler" were analyzed.
Consider the data and practice the original purpose of "sports muffler", namely "improvement of performance" and "tune of sports sound".
Use the "engine bench" and "chassis dynamo" to understand the "characteristics of the engine" and refine and train the "sports muffler" during the test and try.
This is due to the unwavering and strong uncompromising "strong will" of engineers, "to create a unique sports muffler".


SUS304 is used for the silencer and pipe, and boasts high durability.
In addition, gussets are used for reinforcement where cracks tend to occur.
In addition, the use of a lost-wax casting flange makes it possible to use a donut-shaped gasket, and the durability is significantly improved compared to conventional products.