98 mm - 3.85" slip in rear muffler siliencer.

Inner Muffler Silencers give car enthusiasts the option to lower the sound output of an exhaust system. These silencers are inserted into the tip section of the muffler, reducing noise levels of an exhaust by an average of 7db. They can be inserted for daily street use or removed for maximum performance when visiting the track .Made from high quality stainless steel .