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GY6 50CC Performance Scooter Exhaust

GY6 50CC Performance Scooter Exhaust

3(2 ratings)

Best price now

$79.99at BDX PerformanceChecked Nov 12

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Price facts

  • Last seen at $79.99 at BDX Performance on Nov 12.

    • Our take on the GY6 50CC Performance Scooter Exhaust

    A replacement performance exhaust and muffler for QMB139 50cc scooters, sold as a kit with the pipe, muffler, mounting bracket, insulator, gasket and hardware. The 14-inch muffler has a screw-in silencer plug you can swap, and the pipe mounts to the muffler through six holes so you can set the outlet position. It is aimed at owners of 50cc GY6 scooters who want a louder, freer-flowing exhaust and are willing to fit and possibly modify the inlet bracket.

    Best forQMB139 50cc scooter owners replacing a rusted or damaged exhaustRiders who want a louder, more open exhaust noteDIY mechanics comfortable bending or trimming a bracket
    Pros
    • Replaceable screw-in silencer plug lets you tune the sound and backpressure
    • Six mounting holes on the muffler let you rotate the outlet pipe
    • Complete kit: bracket, insulator, gasket, bolts, washers, lock washer and nut
    • 22-inch pipe with four bends is shaped for the QMB139 layout
    • 25mm outside-diameter pipe is close to stock sizing
    Cons
    • May need modification of the inlet bracket on some scooters
    • Only three of the six muffler bolts are used
    • No heat shield or spark arrestor listed
    • Sound level with the plug removed may be too loud for street use

    GY6 50CC Performance Scooter Exhaust prices at every store

    • BDX PerformanceNew

      In stockReturn policy

      $79.99Checked Nov 12
      Visit BDX Performance

    About the GY6 50CC Performance Scooter Exhaust

    This performance exhaust and muffler is made for QMB139 50cc scooters. The muffler has a replaceable screw-in silencer plug. The inlet pipe is 22 inches long with 4 bends.

    Six mounting holes join the pipe to the muffler, so the outlet pipe can be positioned as needed. Only 3 bolts are actually used. Some scooters may need modifications to the inlet bracket.

    Muffler length
    14" including exhaust tip
    Muffler diameter
    3.5"
    Pipe OD
    25 mm
    Pipe ID
    22.5 mm
    Manifold mount
    2"
    Inlet pipe
    22" long with 4 bends
    Bend positions
    1st bend 4.5" from manifold; 2nd bend 4" after; 6" run to 3rd bend; 6" from 3rd bend to muffler attachment
    Silencer
    Replaceable screw-in plug
    Mounting holes
    6 holes for pipe-to-muffler mounting; 3 bolts used
    In the box
    Muffler mounting bracket and insulator, exhaust pipe gasket (2.5" round, 3-hole), 4 bolts, 4 washers, 1 lock washer, 1 nut

    Questions and answers

    Will this fit my 50cc scooter?
    It is made for QMB139 50cc GY6 scooters. The inlet bracket may need modification on some models, so check the pipe routing and manifold bolt spacing before fitting.
    What is the silencer plug for?
    The muffler has a screw-in plug at the outlet. Removing it opens the flow and raises the sound; leaving it in keeps the exhaust quieter.
    Can I change where the outlet points?
    Yes. The pipe bolts to the muffler through six holes, so you can rotate the muffler to aim the outlet before tightening.
    What is in the kit?
    The muffler, the 22-inch inlet pipe, a mounting bracket and insulator, a 2.5-inch three-hole exhaust gasket, four bolts, four washers, one lock washer and one nut.
    Does it come with a gasket?
    Yes, a 2.5-inch round three-hole exhaust pipe gasket is included.
    Will it make my scooter louder?
    A freer-flowing muffler like this is generally louder than stock, especially with the silencer plug removed. Expect a deeper note and more noise at speed.
    Where is the GY6 50CC Performance Scooter Exhaust cheapest?
    At BDX Performance, for $79.99, as of our latest check.
    What do buyers say about the GY6 50CC Performance Scooter Exhaust?
    Rated 3 out of 5 from 2 ratings.