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Description: Exhaust Assembly for 139QMB 49/50cc engine based Sunny Style scooters.When changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra exhaust studs + nuts M6 set since these can easily need replacing and bring your project to a grinding halt while you wait...

Description: Exhaust Assembly Black for 139QMB 49/50cc engine based Sunny Style scooters. The complete exhaust assembly includes a heat shield. Does not include SAI. OEM replacement for CSC go, will work on many sport-style QMB139 scooters. The product is intended as an OEM equivalent for liste..

Description: Installing a replacement cylinder head or 6mm diameter studs? These exhaust nuts are essential. Set includes two exhaust acorn nuts only.NOTE: Also available Exhaust Stud M6x32mm Set (Part# 148-118). Specifications:Include the following Exhaust nut set.•    2x Stain..

Description: Exhaust Stainless Steel Performance for 139QMB 49/50cc 4-stroke engines. Finally, high quality reasonably priced performance exhaust for the GY6 50. Sourced from one of the most reputable Taiwanese exhaust manufacturers, this exhaust works for all sport style GY6 49/50cc 139QM..

Description: Performance Valve Exhaust 2V 16mm intake valve. This Valve Exhaust 2V 16 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve is ONLY for 64mm valves length cylinder head 39mm 2V. Use in conjunction with a 64mm&nb..

Description: Performance Valve Exhaust 2V 16mm intake valve. This Valve Set 2V 16 fits cylinder head 39mm 2V for 139QMB 49/50cc engines (scooters, quads, and buggies).NOTE: This valve set is ONLY for 69mm valves length cylinder head 39mm 2V. Use in conjunction with a 69mm&nb..

Description: LeoVince Exhaust HM-Titan Performance for 139QMB 49/50cc 4-stroke engines. The LeoVince HM-Titan 4 stroke exhaust has a motocross-style silencer for a mix of style, sound, and performance.When changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra ..

Description: These MotoForce replacement exhaust studs work with many scooter exhaust and cylinder big bore kits. It may sometimes be harder get to mount an exhaust using conventional M6 bolts with different thread lengths. Installing these studs with equal thread length makes things a lot easier to..

Description: The NARAKU crossover combines Racing design with an internal structure that is tailored to the requirements of 4-stroke engines. Road legal thanks to E-certification. Most 4-stroke exhausts are just borrowed from 2-stroke series and only the brackets have been altered. The result is a v..

Description: NCY Exhaust Stainless Steel Performance for 139QMB 49/50cc 4-stroke engines. The long-awaited high-end 50cc GY6 exhaust is here at last. Get your Chinese-made scooter the pep and blingy appearance it deserves with this performance exhaust pipe by the famous NCY racing company elect..

Description: NCY Exhaust Gasket 27mm Copper & Fiber for the 139QMB 49/50cc 4-stroke, GY6 125/150cc 4-stroke, and various unlisted makes/model scooter engines. Sold IndividuallyWhen changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra exhaust studs&nb..

Description: NCY Steel & fiber exhaust gasket for the 139QMB 49/50cc 4-stroke, GY6 125/150cc 4-stroke, and various unlisted makes/model scooter engines.When changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra exhaust studs + nuts M6 s..

Description: NCY Exhaust Gasket Steel for the 139QMB 49/50cc 4-stroke, GY6 125/150cc 4-stroke, and various unlisted makes/model scooter engines.When changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra exhaust studs + nuts M6 set or e..

Description: NCY Exhaust Gasket 29.8mm Steel & Fiber for the 139QMB 49/50cc 4-stroke, GY6 125/150cc 4-stroke, and various unlisted makes/model scooter engines.When changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra exhaust studs + nuts&nb..

Description: Complete SSP-G Engine Gasket Premium Set. Includes crankcase-right, head, base, exhaust, intake, secondary air, tensioner, time cover, transmission, and valve cover gaskets. Choose from the cylinder bore size 39mm, 50mm, or 52mm. Everything else is standard fit.NOTE: Recommend prep clea..

Description: SSP-G Exhaust Stainless Steel Performance for 139QMB 49/50cc 4-stroke engines.When changing a cylinder kit or an exhaust, it's a good idea to pick up a few extra exhaust studs + nuts M6 set since these can easily need replacing and bring your project to a grinding halt wh..

Description: Tecnigas Exhaust Silent Pro for 139QMB 49/50cc 4-stroke engines. The Tecnigas Silent Pro exhaust improves torque over the stock exhaust, all while being quiet and maintaining a subtle look. Works well on retro style scooters with lower body panels.When changing a cylinder kit ..