EXHAUST
T-4 EXHAUST SYSTEMS
  • Feature lightweight 6061  T-6 brushed aluminum canister with stainless steel end cap
  • Advanced design ensures lightning-quick throttle response
  • CNC-machined modular end-cap design provides tunable power
  • Extensively track- and dyno-tested
  • Silencers include USFS-approved spark arrestor that can be removed
  • for closed-course racing
  • Steel Allen head screws make repacking an easy task
  • Exclusive E-glass pillow packing
  • 1820-0586
  • Stainless steel headers
  • USFS approved spark arrestor
  • FITS MODEL
    PART #
    SUG. RETAIL
    FITS MODEL
    PART #
    SUG. RETAIL
    FITS MODEL
    PART #
    SUG. RETAIL FOOT
    HONDA
    HONDA (CONT)
    SUZUKI
    CRF70F 04-12
    4H00070
    $264.95
    CRF230F 03-17
    4H03230
    $324.95
    DR-Z110 03-05
    4K02110
    $264.95
    XR70R 98-03
    4H00070
    264.95
    XR650R 00-07
    1820-0185
    674.95
    DR-Z125/L 03-16
    4S03125
    249.95
    CRF80/ 100F 04-13
    4H01080
    264.95
    KAWASAKI
    DR250/ 350/S 90-99
    1820-0187
    499.95
    XR80/ 100R 01-03
    4H01080
    264.95
    KLX110 02-09
    4K02110
    264.95
    YAMAHA
    XR80/ 100R 85-00
    4H00080
    264.95
    KLX110/L 10-17
    1820-1343
    299.95
    TT-R90 00-07
    4Y00090
    264.95
    CRF150F 03-05
    4H03150
    299.95
    KLX125/L 03-09
    4S03125
    249.95
    TT-R110 08-17
    1820-0856
    264.95
    CRF150F 06-17
    1820-0586
    299.95
    KLX140 08-17
    1820-0855
    309.95
    TT-R125 00-17
    4Y00125
    264.95
    TI-4 AND T-4 SLIP-ONS
  • Developed to increase the horsepower
  • and torque throughout the power curve
    1821-0175
  • Ti-4 Slip-ons feature a round titanium
  • canister design for extra durability and personal comfort
  • T-4 Slip-ons have a polished aluminum canister and stainless steel mid-pipe
  • Silencers include wire-meshed spark arrestor that can be removed for closed-course racing
  • Steel Allen-head screws make repacking an easy task
  • Can be used with OEM or Pro Circuit headers
  • FITS MODEL
    DESCRIPTION
    PART #
    SUG. RETAIL
    FITS MODEL
    DESCRIPTION
    PART #
    SUG. RETAIL WHEELS &
    HONDA
    KTM (CONT)
    CRF250R 04-05
    T-4 slip-on
    1820-0052
    $424.95
    450 EXC/ MXC 03
    T-4 slip-on
    4T00400
    $374.95
    Ti-4 slip-on
    1821-0039
    524.95
    450 EXC/ MXC/SX 04-06
    T-4 slip-on
    1821-0148
    374.95
    CRF250R 10
    T-4 slip-on
    1821-1053
    464.95
    450 SXF 07-10
    Ti-4 slip-on
    1821-0561
    574.95
    CRF250X 04-07
    T-4 slip-on
    1820-0052
    424.95
    520 EXC/ MXC/SX 00-02
    T-4 slip-on
    4T00400
    374.95 SUSPENSION
    Ti-4 slip-on
    1821-0039
    524.95
    525 EXC/ MXC/SX 03
    T-4 slip-on
    4T00400
    374.95
    XR400R 96-04
    T-4 slip-on
    4H00400
    374.95
    525 EXC/ MXC/SX 04-06
    T-4 slip-on
    1821-0148
    374.95
    CRF450R 02
    T-4 slip-on
    4H02450
    424.95
    SUZUKI
    CRF450R 04
    T-4 slip-on
    1821-0043
    424.95
    RM-Z250 04-06
    T-4 slip-on
    1821-0775
    424.95 ELECTRICAL
    CRF450R 05
    T-4 slip-on
    1821-0175
    424.95
    RM-Z250 07-09
    Ti-4 slip-on
    1821-0786
    549.95 & GAUGES
    Ti-4 slip-on
    1821-0177
    524.95
    RM-Z250 10
    T-4 slip-on
    1821-1126
    464.95
    CRF450R 06
    T-4 slip-on
    1821-0324
    424.95
    DR-Z400S 07-17
    T-4 slip-on
    1811-2478
    399.95
    CRF450R 07-08
    T-4 slip-on
    1821-0774
    424.95
    DR-Z400SM 05-17
    T-4 slip-on
    1811-2478
    399.95
    CRF450R 09-10
    T-4 slip-on
    1821-0947
    464.95
    RM-Z450 07
    T-4 slip-on
    1821-0556
    424.95 LIGHTING
    CRF450X 05-08
    T-4 slip-on
    1821-0175
    424.95
    RM-Z450 08-09
    T-4 slip-on
    1821-1013
    464.95
    Ti-4 slip-on
    1821-0177
    524.95
    Ti-4 slip-on
    1821-0784
    549.95
    XR600R 85-87, 91-00
    T-4 slip-on
    4H85600
    374.95
    YAMAHA
    XR650L 93-17
    T-4 slip-on
    4H85600
    374.95
    TT-R225 99-04
    T-4 slip-on
    4Y00225
    324.95
    XR650R 00-07
    T-4 slip-on
    4H00650S
    374.95
    WR250F 07-14
    T-4 slip-on
    1821-0763
    424.95
    KAWASAKI
    YZ250F 06
    T-4 slip-on
    1821-0410
    424.95
    KLX250S 09-10
    T-4 slip-on (closed course only)
    1821-1431
    464.95
    Ti-4 slip-on
    1821-0412
    524.95
    KX250F 04-08
    T-4 slip-on
    1821-0775
    424.95
    YZ250F 07-09
    T-4 slip-on
    1821-0951
    464.95
    KX450F 06-08
    T-4 slip-on
    1821-0777
    424.95
    Ti-4 slip-on
    1821-0780
    549.95
    KLX650 93-99
    T-4 slip-on
    4K93650
    374.95
    WR400F 98-00
    T-4 slip-on
    1821-0049
    424.95
    KTM
    YZ400F 98-99
    T-4 slip-on
    1821-0049
    424.95
    250 EXC 02-03
    T-4 slip-on
    4T00400
    374.95
    WR426F 01-02
    T-4 slip-on
    1821-0049
    424.95
    250 EXC 04-06
    T-4 slip-on
    1821-0148
    374.95
    YZ426F 00-02
    T-4 slip-on
    1821-0049
    424.95 HARDWARE &
    250 SXF 07-10
    T-4 slip-on
    1821-1299
    464.95
    WR450F 07-09
    T-4 slip-on
    1821-0764
    424.95 MERCHANDISING
    Ti-4 slip-on
    1821-0563
    574.95
    YZ450F 06
    T-4 slip-on
    1821-0413
    424.95
    250 XCF 08
    T-4 slip-on
    1821-1299
    464.95
    Ti-4 slip-on
    1821-0415
    524.95
    400 EXC/ MXC/SX 00-02
    T-4 slip-on
    4T00400
    374.95
    YZ450F 07-09
    T-4 slip-on
    1821-0952
    464.95 CROSS
    400 XCW 09
    Ti-4 slip-on
    1821-0561
    574.95
    Ti-4 slip-on
    1821-0782
    549.95
    450 EXC 08
    Ti-4 slip-on
    1821-0561
    574.95
    To avoid blueing, consider properly tuning the vehicle; however, the vehicle must always remain within the legal standards for emissions controls as
    defined by EPA, CARB and any other applicable state laws.
    DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.
    SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION.
    2017 PARTS UNLIMITED OFFROAD