Chambered-core motorcycle-exhaust apparatus

A chambered-core motorcycle-exhaust apparatus, comprising:

• an outer, elongated, tubular housing, one end of which is adapted to be secured to a motorcycle engine, and the opposite end of which is formed as an open free end;
• an inner exhaust assembly mounted longitudinally within said housing;
• a dead-air chamber formed between said outer housing and said inner exhaust assembly, whereby heat transfer and engine noise are substantially reduced;
• means to support said inner exhaust assembly within said outer housing, in order to define said dead-air chamber;
• and
• means attached to said exhaust apparatus for mounting said exhaust apparatus to said motorcycle engine;
• wherein said inner exhaust assembly is co-axially mounted within said outer housing, and comprises:
• a first inner pipe section having one end thereof formed with an enlarged annular boss member;
• a nipple member adapted to receive said enlarged annular boss member therein, said nipple member being affixed to said outer housing and extending outwardly therefrom to engage said engine;
• a second inner pipe section adapted to be connected to said first inner pipe section at one end thereof, the opposite end thereof having a boss member with an enlarged diameter;
• and
• a muffler secured adjacent said open free end of said housing, and including oppositely disposed ring members interposed between said pipe sections and said outer housing, whereby said dead-air chamber is defined therebetween and said enlarged boss of said second inner pipe section is adapted to be connected to one of said ring members.