Universal Parts GY6 125/150cc Front Exhaust Header Pipe

This Universal Parts front exhaust header pipe replaces a rusted or cracked pipe on matching sport-style GY6 125/150cc scooters, helping restore a sealed exhaust path and get your ride back in shape. Its heavy-gauge steel construction is built for the heat cycles of an air-cooled four-stroke engine, while the contoured shape connects the cylinder head to a compatible side-mounted muffler.

Key Features

• Practical exhaust repair: Replace a damaged front pipe without replacing a serviceable, compatible muffler.
• Sport-style routing: Contoured for matching sport-body scooters; compare the bends and mounting positions with your original pipe.
• Heavy-gauge steel: Built to withstand repeated heating and cooling during everyday use.
• Two-bolt head flange: 50 mm bolt spacing provides a defined mounting specification for checking cylinder-head fit.
• Muffler connection: 69 mm bolt spacing at the muffler end for matching exhaust assemblies.

Technical Specifications

• Brand: Universal Parts
• Part number: 164-17
• Part type: Front exhaust header pipe
• Application: Matching sport-style GY6 125/150cc four-stroke scooters
• Material: Heavy-gauge steel
• Color: Black
• Approximate length: 15 inches
• Inner diameter: 18.5 mm
• Cylinder-head bolt spacing: 50 mm
• Muffler bolt spacing: 69 mm

Compatibility

For matching Chinese GY6 125/150cc sport-style scooter exhaust systems, including 152QMI and 157QMJ applications.

Compare the 50 mm cylinder-head bolt spacing, 69 mm muffler bolt spacing, 18.5 mm inner diameter, flange angles, pipe bends, and overall routing with your existing assembly. Confirm ground, bodywork, and muffler clearance before installation. Engine code alone does not guarantee fitment.

Use a new correctly sized exhaust gasket when installing the pipe. Clean the mating surfaces, support and align the exhaust before tightening, and follow the vehicle manufacturer's fastener and thread-treatment instructions.

• Replacement front header pipe for matching GY6 sport-style scooters
• Heavy-gauge steel construction
• Contoured routing for compatible side-mounted mufflers
• 50 mm cylinder-head bolt spacing
• 69 mm muffler bolt spacing

Brand: Universal Parts; Part number: 164-17; Type: front exhaust header pipe; Application: matching sport-style GY6 125/150cc 4T scooters; Material: heavy-gauge steel; Color: black; Approximate length: 15 inches; Inner diameter: 18.5 mm; Cylinder-head bolt spacing: 50 mm; Muffler bolt spacing: 69 mm

Matching GY6 125/150cc sport-style scooters, including 152QMI/157QMJ configurations; Baja SC150; Roketa 150cc series; JM Star Tomahawk II; Tank/SUNL Sporty 150 applications; Vento Phantom; X-Treme 150cc sport-style applications; other matching GY6 sport-body models. Verify 50 mm head and 69 mm muffler bolt spacing, 18.5 mm inner diameter, flange angles, pipe routing and clearance.