Bike not included, Exhaust only. You must know this before you make your purchase! - This is not a muffler, it is a Header, it has nothing inside, it will be loud! but it will have a good tone thanks to the extended tip that it has. Please Note: In order to install this exhaust you have to remove the stud bolt that are in your 79cc engine. (See photos for details as instructions) This exhaust only works on the 79cc Phatmoto engine, does not work on any other engine no matter it is 79cc, the mounting holes are different to the others 79cc. Type of material: mild steel, uncoated steel. Includes - 2 ss Lock washer - 2 ss Screws, short allen key for installation + Exhaust Gasket, Made in U.S.A. If you plan to paint the exhaust with high heat 2000F paint I can sandblast it for you before shipping at no additional cost, let me know before placing the order... or leave a note.