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Yamaha SR500 41mm Stainless Steel "Big Bore" Header Pipe 4-133

Big Bore Stainless Steel Exhaust Header Pipe

Larger Radius; Giving more space between the engine/frame.
Designed to give more torque from midrange RPM.

Single-walled design for maximum flow, optimal in combination with unrestricted intake like K&N air filters, tuning carburettor etc., easy installation at original mounting spots

SR500 1978 and up