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Pro Circuit R304 Silencers

Pro Circuit R304 Silencers

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Pro Circuit R-304 Silencer Kawasaki KX125 1999-2002 SK99125-RE

    Pro Circuit R-304 Silencer Kawasaki KX125 1999-2002 SK99125-RE

    PRO CIRCUIT

    $206.29
    If you're running a KX125 in competitive racing, exhaust flow directly impacts your power delivery and track times. The Pro Circuit R-304 Shorty Silencer is engineered to maximize exhaust efficiency without sacrificing the noise management required for...
    SK99125RE
    SKU:
    SK99125RE
    Availability:
    Ships Same Business Day
    Weight:
    1.94 LBS
    MODEL:
    R-304
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer for Kawasaki KX250 1999-2002 SK99250-RE

    Pro Circuit R-304 Silencer for Kawasaki KX250 1999-2002 SK99250-RE

    PRO CIRCUIT

    $206.29
    The Pro Circuit R-304 Silencer is engineered for competitive two-stroke racing where exhaust efficiency directly translates to power on the track. Optimized internal design and premium materials deliver measurable gains in throttle response and...
    SK99250RE
    SKU:
    SK99250RE
    Availability:
    Ships Same Business Day
    Weight:
    2.22 LBS
    MODEL:
    R-304
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Suzuki RM85 2002-2023 SS89080-R

    Pro Circuit R-304 Silencer Suzuki RM85 2002-2023 SS89080-R

    PRO CIRCUIT

    $206.29
    If you're running a Suzuki RM85 in competitive two-stroke racing, your exhaust system directly impacts throttle response and mid-range power. The Pro Circuit R-304 Shorty Silencer delivers measurable gains in scavenging efficiency while keeping rotating...
    SS89080R
    SKU:
    SS89080R
    Availability:
    Ships Same Business Day
    Weight:
    1.50 LBS
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer KTM 250 SX 2017-2018 1151725

    Pro Circuit R-304 Silencer KTM 250 SX 2017-2018 1151725

    PRO CIRCUIT

    $206.29
    Two-stroke racers know that exhaust flow directly translates to power on the track—restrictive silencers cost you RPMs and throttle response when you need them most. The Pro Circuit R-304 Shorty combines a compact footprint with precision internal...
    18211776
    SKU:
    18211776
    Availability:
    Ships Same Business Day
    Weight:
    2.55 LBS
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    UNITS:
    EACH
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer KTM 65 SX 2016-2022 1151665

    Pro Circuit R-304 Silencer KTM 65 SX 2016-2022 1151665

    PRO CIRCUIT

    $206.29
    If you're running a KTM 65 SX in competitive two-stroke racing, exhaust flow directly impacts power delivery and throttle response. The Pro Circuit R-304 Silencer delivers measurable performance gains while maintaining the durability required for...
    18211767
    SKU:
    18211767
    Availability:
    Ships Same Business Day
    Weight:
    1.55 LBS
    UNITS:
    EACH
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    R-304
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Kawasaki KX85 2001-2025 SK98080-R

    Pro Circuit R-304 Silencer Kawasaki KX85 2001-2025 SK98080-R

    PRO CIRCUIT

    $206.29
    The Pro Circuit R-304 Silencer is engineered for KX85 riders who refuse to leave power on the track. By optimizing exhaust flow dynamics, this shorty silencer delivers measurable horsepower gains while keeping unsprung weight to a minimum—critical for...
    SK98080R
    SKU:
    SK98080R
    Availability:
    Ships Same Business Day
    Weight:
    1.75 LBS
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Yamaha YZ125 2002-2021 SY02125-RE

    Pro Circuit R-304 Silencer Yamaha YZ125 2002-2021 SY02125-RE

    PRO CIRCUIT

    $206.29
    If you're running a YZ125 in closed-course racing, exhaust flow directly impacts throttle response and mid-range power delivery. The Pro Circuit R-304 Shorty Silencer gives you measurable performance gains without the weight penalty of heavier...
    SY02125RE
    SKU:
    SY02125RE
    Availability:
    Ships Same Business Day
    Weight:
    1.80 LBS
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Shorty Silencer Yamaha YZ250 2003-2025 SY03250-RE

    Pro Circuit R-304 Shorty Silencer Yamaha YZ250 2003-2025 SY03250-RE

    PRO CIRCUIT

    $206.29
    Competitive riding demands an exhaust system that balances raw power with precision engineering—and the Pro Circuit R-304 Shorty Silencer delivers both without compromise. Built for Yamaha YZ250 models (2003–2025), this compact silencer maximizes exhaust...
    SY03250RE
    SKU:
    SY03250RE
    Availability:
    Ships Same Business Day
    Weight:
    2.45 LBS
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Honda CR250R 2002-2003 SH02250-RE

    Pro Circuit R-304 Silencer Honda CR250R 2002-2003 SH02250-RE

    PRO CIRCUIT

    $206.29
    Two-stroke racing demands precision in every component, and your exhaust system is no exception. The Pro Circuit R-304 Shorty Silencer delivers measurable gains in power delivery through optimized scavenging while cutting rotational mass—critical...
    SH02250RE
    SKU:
    SH02250RE
    Availability:
    Ships Same Business Day
    Weight:
    2.18 LBS
    END CAP MATERIAL:
    STAINLESS STEEL
    TYPE:
    SLIP-ON
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    UNITS:
    EACH
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    RIDING STYLE:
    OFF-ROAD
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer KTM 300 XC-W TPI 2019 1151930

    Pro Circuit R-304 Silencer KTM 300 XC-W TPI 2019 1151930

    PRO CIRCUIT

    $206.29
    The Pro Circuit R-304 Silencer is engineered to unlock measurable gains in exhaust scavenging and throttle response on your KTM 300 XC-W TPI or Husqvarna TE 300i. By reducing backpressure while maintaining optimal sound levels, this silencer delivers the...
    18211972
    SKU:
    18211972
    Availability:
    Ships Same Business Day
    Weight:
    2.50 LBS
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Yamaha YZ65 2019-2025 1131865

    Pro Circuit R-304 Silencer Yamaha YZ65 2019-2025 1131865

    PRO CIRCUIT

    $206.29
    The Pro Circuit R-304 Silencer is engineered to deliver measurable performance gains on the track while maintaining the durability required for competitive racing. This lightweight, race-proven silencer reduces rotational mass and optimizes exhaust flow...
    18211985
    SKU:
    18211985
    Availability:
    Ships Same Business Day
    Weight:
    1.65 LBS
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    MODEL:
    R-304
    UNITS:
    EACH
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer KTM 250 SX 2003-2009 ST03250-RE

    Pro Circuit R-304 Silencer KTM 250 SX 2003-2009 ST03250-RE

    PRO CIRCUIT

    $206.29
    The Pro Circuit R-304 Silencer is engineered to extract maximum power from your KTM 250 SX while maintaining the lightweight performance you need on the track. This bolt-on silencer delivers measurable gains in horsepower and torque through optimized...
    18210054
    SKU:
    18210054
    Availability:
    Ships Same Business Day
    Weight:
    2.74 LBS
    MUFFLER COLOR/FINISH:
    BRUSHED
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    R-304
    UNITS:
    EACH
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer for Suzuki RM250 2004-2008 SS04250-RE

    Pro Circuit R-304 Silencer for Suzuki RM250 2004-2008 SS04250-RE

    PRO CIRCUIT

    $206.29
    If you're running a 2004-2008 Suzuki RM250, factory silencers wear out fast under racing conditions—losing power delivery and reliability when you need them most. The Pro Circuit R-304 replaces that worn component with precision engineering that restores...
    18210058
    SKU:
    18210058
    Availability:
    Ships Same Business Day
    Weight:
    2.30 LBS
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer KTM 65 SX 2009-2015 ST09065-RE

    Pro Circuit R-304 Silencer KTM 65 SX 2009-2015 ST09065-RE

    PRO CIRCUIT

    $206.29
    If you're running a KTM 65 SX in competitive racing, exhaust efficiency directly impacts your power delivery and throttle response. The Pro Circuit R-304 Shorty Silencer is engineered specifically for two-stroke performance, optimizing scavenging cycles...
    18211007
    SKU:
    18211007
    Availability:
    Ships Same Business Day
    Weight:
    1.54 LBS
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    END CAP MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer for 1993-1997 Honda CR125R SH93125-RE

    Pro Circuit R-304 Silencer for 1993-1997 Honda CR125R SH93125-RE

    PRO CIRCUIT

    $206.29
    If you're running a CR125R in competitive motocross, exhaust flow directly impacts your power delivery and throttle response when it matters most. The Pro Circuit R-304 Shorty Silencer is engineered to maximize exhaust scavenging while keeping unsprung...
    18210119
    SKU:
    18210119
    Availability:
    Ships Same Business Day
    Weight:
    1.65 LBS
    MUFFLER COLOR/FINISH:
    BRUSHED
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    R-304
    UNITS:
    EACH
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer for KTM 65 SX 2004-2008 ST04065-RE

    Pro Circuit R-304 Silencer for KTM 65 SX 2004-2008 ST04065-RE

    PRO CIRCUIT

    $206.29
    If you're running a KTM 65 SX in competitive racing, exhaust flow directly impacts your power delivery and acceleration off the line. The Pro Circuit R-304 Shorty Silencer optimizes your two-stroke's scavenging efficiency while keeping rotating mass...
    18210138
    SKU:
    18210138
    Availability:
    Ships Same Business Day
    Weight:
    1.63 LBS
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Kawasaki KX250 2005-2007 SK05250-RE

    Pro Circuit R-304 Silencer Kawasaki KX250 2005-2007 SK05250-RE

    PRO CIRCUIT

    $206.29
    The Pro Circuit R-304 Shorty Silencer extracts peak power from your KX250's two-stroke engine by optimizing exhaust scavenging and improving throttle response when it matters most—on the gate. A properly tuned silencer directly impacts mid-range punch...
    18210158
    SKU:
    18210158
    Availability:
    Ships Same Business Day
    Weight:
    2.31 LBS
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    END CAP MATERIAL:
    STAINLESS STEEL
    MODEL:
    R-304
    MUFFLER COLOR/FINISH:
    BRUSHED
    PIPE MATERIAL:
    STAINLESS STEEL
    PRODUCT NAME:
    SILENCER
    UNITS:
    EACH
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer Beta 250 RR 2014 11101430

    Pro Circuit R-304 Silencer Beta 250 RR 2014 11101430

    PRO CIRCUIT

    $206.29
    If you're running a Beta 250 RR on the track, exhaust flow directly impacts your power band and throttle response. The Pro Circuit R-304 Shorty Silencer delivers measurable gains in top-end performance while cutting weight—critical for competitive racing...
    18211692
    SKU:
    18211692
    Availability:
    Ships Same Business Day
    Weight:
    2.65 LBS
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    MODEL:
    R-304
    UNITS:
    EACH
    END CAP MATERIAL:
    STAINLESS STEEL
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Pro Circuit R-304 Silencer for KTM 250 SX 2011-2016 1151525

    Pro Circuit R-304 Silencer for KTM 250 SX 2011-2016 1151525

    PRO CIRCUIT

    $206.29
    If you're running a KTM 250 SX at the track, you already know that every gram and every horsepower matters. The Pro Circuit R-304 Shorty Silencer delivers measurable top-end power gains while trimming weight from your bike's mass—a combination that...
    18211697
    SKU:
    18211697
    Availability:
    Ships Same Business Day
    Weight:
    2.87 LBS
    MODEL:
    R-304
    MUFFLER MATERIAL:
    6061 T6 ALUMINUM
    PIPE MATERIAL:
    STAINLESS STEEL
    RIDING STYLE:
    OFF-ROAD
    TYPE:
    SLIP-ON
    MUFFLER COLOR/FINISH:
    BRUSHED
    PRODUCT NAME:
    SILENCER
    END CAP MATERIAL:
    STAINLESS STEEL
    UNITS:
    EACH
    $206.29
    Qty in Cart: 0
    Quantity:
    Price:
    $206.29
    Subtotal:
  • Total: items /

Adding your products to cart

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

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