2-into-1 Super Bike Exhaust System with 4" Muffler

• Stepped 1-3/4" to 1-7/8" headpipes header system
• 4" muffler body and matching end cap
• Features TIG welding, 18 mm O2 bungs with 12 mm adapters
• Partial heat shields that cover the headpipes
• Made in the U.S.A.