- $43.26 off
Arrow Pro-Race Slip-on Exhaust, Nichrome for Ninja 400/Z400 2019- 2024 71874PRI
$38937 USD$43263Unit price /UnavailableLow stock (3 units) Arrow 71775MI Racing Collector for Kawasaki Z400/Ninja 400 2022-2024 71775MI
$45976 USD$51084Unit price /UnavailableLow stock (3 units)Arrow 71686MI Racing Exhaust Collector for Kawasaki Z400 2019-2020
$42679 USD$47421Unit price /UnavailableLow stock (3 units)- $83.11 off
AKRAPOVIC Slip-On Line Muffler - Titanium NINJA 400 2018-2023 S-K4SO7-HRT 1811-4372
$61083 USD$69394Unit price /UnavailableIn stock (13 units) - $71.23 off
AKRAPOVIC Carbon Fiber Muffler NINJA 400 2018-2023 S-K4SO6-APC 1811-3515
$51876 USD$58999Unit price /UnavailableIn stock (20 units) - $36.78 off
LEOVINCE LV-10 Muffler Ninja 400/500 2018-2024 15218CU 1811-4117
$27007 USD$30685Unit price /UnavailableIn stock (20 units) AKRAPOVIC Header - Stainless Steel Ninja 400 E-K4R2 1812-0568
$36531 USD$41476Unit price /UnavailableIn stock (20 units)LEOVINCE Factory S Exhaust System - Stainless Steel Ninja 400 /500 2018-2025 14426SU 1810-3116
$69295 USD$77215Unit price /UnavailableLow stock (2 units)LEOVINCE Factory S Exhaust System - Carbon Fiber Ninja 400 2018-2023 14427S
$68468 USD$77809Unit price /UnavailableVery low stock (1 unit)- $51.03 off
LEOVINCE Header - Stainless Steel - Ninja 400 2018-2023 80038 1812-0573
$37462 USD$42565Unit price /UnavailableVery low stock (1 unit) - $87.12 off
M4 Exhaust Full System X-96 Carbon Fiber Ninja 400/500/Z400 2018-2024 KA4024
$69201 USD$77913Unit price /UnavailableLow stock (3 units) - $53.46 off
M4 Exhaust X-96 Carbon Fiber Slip On Ninja 400/500/Z400 2018-2024 KA4014
$47223 USD$52569Unit price /UnavailableLow stock (3 units) - $154.43 off
Graves motorsports Ninja 400 + Ninja 500 WORKS2 Full Exhaust System EXK-18EX4-FSCW2
$1,13252 USD$1,28695Unit price /UnavailableIn stock (10 units) - $70.69 off$51836 USD
$58905Unit price /UnavailableIn stock (5 units) - $70.69 off$51836 USD
$58905Unit price /UnavailableIn stock (11 units) Hindle noise reducer, evolution/ megaphone canisters 75-EVNRR
$4949 USDUnit price /UnavailableBackorderedHindle evolution megaphone slip-on system kawasaki ninja ex400 2018-21
From $29699 USDUnit price /UnavailableIn stock (11 units)Hindle evo megaphone full system low kawasaki ninja ex400 2018-22 stainless steel megaphone
$52469 USDUnit price /UnavailableIn stock (11 units)- $57419 USDUnit price /UnavailableIn stock (10 units)
Graves motorsports ninja ex400 smog block off plates
$2969 USDUnit price /UnavailableIn stock (74 units)- $9.89 off
DNA Air Filter for Kawasaki ZX-4RR 2023 - 2024 / Ninja 400 /500 DNA-P-K4S18-01
$10355 USDUnit price /UnavailableIn stock (58 units)Graves motorsports Kawasaki Ninja 400 + Z400 Velocity Stacks ABK-EX4-VE
$12865 USDUnit price /UnavailableIn stock (740 units)- $52.60 off
DYNOJET Power Commander-6 with Ignition Adjustment - Ninja 400 2018-2023 PC6-17076
$47024 USD$52284Unit price /UnavailableIn stock (23 units) Graves motorsports high precision cam chain tensioner ninja 400 2018-2022 CMK-18EX4-PC
$18508 USDUnit price /UnavailableIn stock (80 units)T-rex 2018 - 2023 kawasaki ninja 400 no cut frame sliders w/ aluminum inserts
$16825 USDUnit price /UnavailableLow stock (3 units)T-rex 2018 - 2020 kawasaki ninja 400 no cut frame sliders case covers fender eliminator spools
$34249 USDUnit price /UnavailableLow stock (3 units)MOOSE RACING Repair Kit - Master Cylinder - Brake 18-1003
$2470 USD$2767Unit price /UnavailableIn stock (20 units)Graves Motorsports Ninja Ex400 18-20/Z400 2020 Fender Eliminator Tag Bracket FEK-18EX4-K
$14944 USDUnit price /UnavailableIn stock (276 units)Graves Motorsports Ninja 400 Steering Stop W-Wmk-19ex4-01
$4454 USDUnit price /UnavailableIn stock (54 units)Kawasaki ninja 400 2018-2023/500 2024 steering damper mount
$19701 USDUnit price /UnavailableIn stock (15 units)Graves Pneumatic Preload Adjuster For Ohlins Ttx Shocks W-Wsk-2001-02
$34412 USD$39105Unit price /UnavailableIn stock (54 units)Graves Motorsports Works 41mm Riser Clip-On Handlebars HB041R
$18805 USDUnit price /UnavailableLow stock (2 units)Graves Motorsports Clip-On Replacement Bar HB001K
$2228 USDUnit price /UnavailableIn stock (8 units)Galespeed active remote adjuster and bracket set zx10r / zx6r / ninja 400
$10494 USDUnit price /UnavailableIn stock (44 units)Graves motorsports kawasaki ninja 400 2018-2021 adjustable rearsets
$43473 USD$49401Unit price /UnavailableIn stock (8 units)ABS Delete 2 ZX-4R 2023-2024 / Ninja 400 2018-2023 /Z900RS Cafe 2019-2023 ABS_KAW_2
$34551 USDUnit price /UnavailableLow stock (4 units)Ftecu ninja 400 quick shifter kit 2018-2020
$23760 USDUnit price /Unavailable- $33106 USD
$37620Unit price /UnavailableLow stock (3 units) - $53.46 off
Flash tune ecu ninja ex400 / ninja 650 / z650 2018-2023 bench tuning kit
$39204 USD$44550Unit price /UnavailableLow stock (4 units) - Sold out
TARGA X-Tail Kit - Z400 2019-2020 No Signal 22-485-X-L
$7371 USDUnit price /Unavailable DRIVEN RACING Block Off Plate Ninja 400 2018 DSBLOCK-24
$3563 USDUnit price /UnavailableIn stock (15 units)HOT BODIES MGP Rearset - Black - Ninja 400 2018-2023 51801-2500
$34645 USDUnit price /UnavailableLow stock (2 units)EBC Brake Rotor Ninja 400 ABS KRT Edition /Ninja 400 MD4174X
$21394 USD$24313Unit price /UnavailableLow stock (3 units)EBC Brake Rotor - Contour Ninja 400/500 2018-2024/ Z7 MD4174XC
$22255 USD$25286Unit price /UnavailableEBC Brake Rotor - Contour Kawasaki Ninja 400/300 Z 125 Pro MD4179AC
$17681 USD$20093Unit price /UnavailableEBC Brake Rotor - Ninja - MD4163C MD4163C
$14850 USD$16871Unit price /UnavailableIn stock (13 units)GALFER HH Sintered Brake Pads Ninja 400 FD532G1370
$3871 USD$4401Unit price /UnavailableIn stock (117 units)DP BRAKES Pro MX Sintered Brake Pads - SDP412 SDP412
$4267 USD$4846Unit price /UnavailableIn stock (17 units)