- $44.57 off
Arrow Pro-Race Slip-on Exhaust, Nichrome for Ninja 400/Z400 2019- 2024 71874PRI
$40117 USD$44574Unit price /UnavailableLow stock (3 units) Arrow 71775MI Racing Collector for Kawasaki Z400/Ninja 400 2022-2024 71775MI
$47369 USD$52632Unit price /UnavailableLow stock (3 units)Arrow 71686MI Racing Exhaust Collector for Kawasaki Z400 2019-2020
$43972 USD$48858Unit price /UnavailableLow stock (3 units)- $85.63 off
AKRAPOVIC Slip-On Line Muffler - Titanium NINJA 400 2018-2023 S-K4SO7-HRT 1811-4372
$62934 USD$71497Unit price /UnavailableIn stock (13 units) - $73.39 off
AKRAPOVIC Carbon Fiber Muffler NINJA 400 2018-2023 S-K4SO6-APC 1811-3515
$53448 USD$60787Unit price /UnavailableIn stock (20 units) - $37.89 off
LEOVINCE LV-10 Muffler Ninja 400/500 2018-2024 15218CU 1811-4117
$27826 USD$31615Unit price /UnavailableIn stock (20 units) AKRAPOVIC Header - Stainless Steel Ninja 400 E-K4R2 1812-0568
$37638 USD$42733Unit price /UnavailableIn stock (20 units)LEOVINCE Factory S Exhaust System - Stainless Steel Ninja 400 /500 2018-2025 14426SU 1810-3116
$71395 USD$79555Unit price /UnavailableLow stock (2 units)LEOVINCE Factory S Exhaust System - Carbon Fiber Ninja 400 2018-2023 14427S
$70543 USD$80167Unit price /UnavailableVery low stock (1 unit)- $52.58 off
LEOVINCE Header - Stainless Steel - Ninja 400 2018-2023 80038 1812-0573
$38597 USD$43855Unit price /UnavailableVery low stock (1 unit) - $89.76 off
M4 Exhaust Full System X-96 Carbon Fiber Ninja 400/500/Z400 2018-2024 KA4024
$71298 USD$80274Unit price /UnavailableLow stock (3 units) - $55.08 off
M4 Exhaust X-96 Carbon Fiber Slip On Ninja 400/500/Z400 2018-2024 KA4014
$48654 USD$54162Unit price /UnavailableLow stock (3 units) - $159.11 off
Graves motorsports Ninja 400 + Ninja 500 WORKS2 Full Exhaust System EXK-18EX4-FSCW2
$1,16684 USD$1,32595Unit price /UnavailableIn stock (10 units) - $72.83 off$53407 USD
$60690Unit price /UnavailableIn stock (5 units) - $72.83 off$53407 USD
$60690Unit price /UnavailableIn stock (11 units) Hindle noise reducer, evolution/ megaphone canisters 75-EVNRR
$5099 USDUnit price /UnavailableBackorderedHindle evolution megaphone slip-on system kawasaki ninja ex400 2018-21
From $30599 USDUnit price /UnavailableIn stock (11 units)Hindle evo megaphone full system low kawasaki ninja ex400 2018-22 stainless steel megaphone
$54059 USDUnit price /UnavailableIn stock (11 units)- $59159 USDUnit price /UnavailableIn stock (10 units)
Graves motorsports ninja ex400 smog block off plates
$3059 USDUnit price /UnavailableIn stock (74 units)- $10.19 off
DNA Air Filter for Kawasaki ZX-4RR 2023 - 2024 / Ninja 400 /500 DNA-P-K4S18-01
$10669 USDUnit price /UnavailableIn stock (58 units)Graves motorsports Kawasaki Ninja 400 + Z400 Velocity Stacks ABK-EX4-VE
$13255 USDUnit price /UnavailableIn stock (740 units)- $54.19 off
DYNOJET Power Commander-6 with Ignition Adjustment - Ninja 400 2018-2023 PC6-17076
$48449 USD$53868Unit price /UnavailableIn stock (23 units) Graves motorsports high precision cam chain tensioner ninja 400 2018-2022 CMK-18EX4-PC
$19069 USDUnit price /UnavailableIn stock (80 units)T-rex 2018 - 2023 kawasaki ninja 400 no cut frame sliders w/ aluminum inserts
$17335 USDUnit price /UnavailableLow stock (3 units)T-rex 2018 - 2020 kawasaki ninja 400 no cut frame sliders case covers fender eliminator spools
$35287 USDUnit price /UnavailableLow stock (3 units)MOOSE RACING Repair Kit - Master Cylinder - Brake 18-1003
$2545 USD$2851Unit price /UnavailableIn stock (20 units)Graves Motorsports Ninja Ex400 18-20/Z400 2020 Fender Eliminator Tag Bracket FEK-18EX4-K
$15397 USDUnit price /UnavailableIn stock (276 units)Graves Motorsports Ninja 400 Steering Stop W-Wmk-19ex4-01
$4589 USDUnit price /UnavailableIn stock (54 units)Kawasaki ninja 400 2018-2023/500 2024 steering damper mount
$20298 USDUnit price /UnavailableIn stock (15 units)Graves Pneumatic Preload Adjuster For Ohlins Ttx Shocks W-Wsk-2001-02
$35455 USD$40290Unit price /UnavailableIn stock (54 units)Graves Motorsports Works 41mm Riser Clip-On Handlebars HB041R
$19375 USDUnit price /UnavailableLow stock (2 units)Graves Motorsports Clip-On Replacement Bar HB001K
$2295 USDUnit price /UnavailableIn stock (8 units)Galespeed active remote adjuster and bracket set zx10r / zx6r / ninja 400
$10812 USDUnit price /UnavailableIn stock (44 units)Graves motorsports kawasaki ninja 400 2018-2021 adjustable rearsets
$44790 USD$50898Unit price /UnavailableIn stock (8 units)ABS Delete 2 ZX-4R 2023-2024 / Ninja 400 2018-2023 /Z900RS Cafe 2019-2023 ABS_KAW_2
$35598 USDUnit price /UnavailableLow stock (4 units)Ftecu ninja 400 quick shifter kit 2018-2020
$24480 USDUnit price /Unavailable- $34109 USD
$38760Unit price /UnavailableLow stock (3 units) - $55.08 off
Flash tune ecu ninja ex400 / ninja 650 / z650 2018-2023 bench tuning kit
$40392 USD$45900Unit price /UnavailableLow stock (4 units) - Sold out
TARGA X-Tail Kit - Z400 2019-2020 No Signal 22-485-X-L
$7594 USDUnit price /Unavailable DRIVEN RACING Block Off Plate Ninja 400 2018 DSBLOCK-24
$3671 USDUnit price /UnavailableIn stock (15 units)HOT BODIES MGP Rearset - Black - Ninja 400 2018-2023 51801-2500
$35695 USDUnit price /UnavailableLow stock (2 units)EBC Brake Rotor Ninja 400 ABS KRT Edition /Ninja 400 MD4174X
$22042 USD$25050Unit price /UnavailableLow stock (3 units)EBC Brake Rotor - Contour Ninja 400/500 2018-2024/ Z7 MD4174XC
$22930 USD$26052Unit price /UnavailableEBC Brake Rotor - Contour Kawasaki Ninja 400/300 Z 125 Pro MD4179AC
$18217 USD$20702Unit price /UnavailableEBC Brake Rotor - Ninja - MD4163C MD4163C
$15300 USD$17382Unit price /UnavailableIn stock (13 units)GALFER HH Sintered Brake Pads Ninja 400 FD532G1370
$3988 USD$4534Unit price /UnavailableIn stock (117 units)DP BRAKES Pro MX Sintered Brake Pads - SDP412 SDP412
$4396 USD$4993Unit price /UnavailableIn stock (17 units)