WPS-SP1

SP1 Hyd Susp Shock Rear A/C SM-04164

Regular price ¥17,000 JPY

In stock (525 units)
SP1 Hyperdryve Piston A/C SM-109221

Regular price ¥20,800 JPY

In stock (446 units)
SP1 Hyperdryve Piston Kit SM-109287

Regular price ¥31,900 JPY

In stock (763 units)
SP1 Hyperdryve Piston Pol 800 SM-109279

Regular price ¥32,200 JPY

In stock (575 units)
SP1 Hyperdryve Piston Pol SM-109245

Regular price ¥23,300 JPY

In stock (575 units)
SP1 Hyperdryve Piston Pol SM-109247

Regular price ¥22,200 JPY

In stock (575 units)
SP1 Hyperdryve Piston S-D 800r SM-109271

Regular price ¥27,000 JPY

In stock (597 units)
SP1 Hyperdryve Piston S-D SM-109144

Regular price ¥21,400 JPY

In stock (371 units)
SP1 Ice Scratcher Holders Pair SM-12015

Regular price ¥2,100 JPY

In stock (567 units)
SP1 Ice Scratcher Kit Ac SM-12653

Regular price ¥11,800 JPY

In stock (315 units)
SP1 Ice Scratcher Spring Lh SM-12597A-L

Regular price ¥2,300 JPY

In stock (525 units)
SP1 Ice Scratcher Spring Rh SM-12597A-R

Regular price ¥2,300 JPY

In stock (901 units)
SP1 Idler Bearing Kit A/C SM-03291

Regular price ¥9,700 JPY

In stock (747 units)
SP1 Idler Wheel 4.00" X 5/8" SC-04003

Regular price ¥6,500 JPY

In stock (284 units)
SP1 Idler Wheel 5.12" X 25mm SC-04000

Regular price ¥8,400 JPY

In stock (1150 units)
SP1 Idler Wheel 5.54" X 20mm SC-04004

Regular price ¥7,600 JPY

In stock (970 units)
SP1 Idler Wheel 5.61" X 20mm SC-04005

Regular price ¥10,800 JPY

In stock (1028 units)
SP1 Idler Wheel 5.63" X 25mm SC-04006

Regular price ¥8,900 JPY

In stock (390 units)
SP1 Idler Wheel 5.64" X 20mm SC-04007

Regular price ¥8,300 JPY

In stock (1150 units)
SP1 Idler Wheel 6.50" X 20mm SC-04002

Regular price ¥9,500 JPY

In stock (471 units)
SP1 Idler Wheel Cap A/C SM-04432

Regular price ¥800 JPY

In stock (828 units)
SP1 Idler Wheel Cap SM-04173

Regular price ¥800 JPY

In stock (578 units)
SP1 Idler Wheel Cap SM-04431

Regular price ¥1,000 JPY

In stock (895 units)
SP1 Idler Wheel Cap Yam SM-04430

Regular price ¥800 JPY

In stock (671 units)
SP1 Idler Wheel/Ice Scratcher Mount Kit 20mm SM-12550

Regular price ¥7,500 JPY

In stock (396 units)
SP1 Idler Wheel/Ice Scratcher Mount Kit 25mm SM-12550-1

Regular price ¥7,500 JPY

In stock (874 units)
SP1 Ignition Key Only A/C 01-118-23

Regular price ¥1,000 JPY

In stock (575 units)
SP1 Ignition Points 01-135

Regular price ¥1,600 JPY

In stock (475 units)
Sold out

SP1 Ignition Points 01-135-01

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-136

Regular price ¥2,400 JPY
SP1 Ignition Points 01-136-03

Regular price ¥1,500 JPY

In stock (475 units)
Sold out

SP1 Ignition Points 01-137

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-138-03

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-139

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-139-02

Regular price ¥1,400 JPY
Sold out

SP1 Ignition Points 01-139-03

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-139-04

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-139-05

Regular price ¥2,400 JPY
Sold out

SP1 Ignition Points 01-139-08

Regular price ¥2,400 JPY
SP1 Ignition Switch 01-118-20

Regular price ¥3,200 JPY

In stock (525 units)
SP1 Ignition Switch A/C SM-01220

Regular price ¥6,700 JPY

In stock (695 units)
SP1 Ignition Switch A/C SM-01545

Regular price ¥8,100 JPY

In stock (328 units)
SP1 Ignition Switch A/C SM-01550

Regular price ¥8,100 JPY

In stock (214 units)
SP1 Ignition Switch A/C SM-01558

Regular price ¥5,700 JPY

In stock (552 units)
SP1 Ignition Switch Ac/Yam SM-01542

Regular price ¥4,500 JPY

In stock (275 units)
Sold out

SP1 Ignition Switch Pol 01-118-19

Regular price ¥4,800 JPY
Sold out

SP1 Ignition Switch S-D 01-118-27

Regular price ¥4,900 JPY
SP1 Ignition Switch S-D SM-01551

Regular price ¥8,400 JPY

In stock (221 units)
SP1 Ignition Switch SM-01027

Regular price ¥6,200 JPY

In stock (260 units)
Sold out

SP1 Ignition Switch Yam 01-118-32

Regular price ¥8,600 JPY

Let customers speak for us

from 670 reviews

Will Be Back!

I recently purchased the Arrow Race-Tech Slip-On Exhaust (Aluminum Dark) for my Kawasaki Z900 (’17–’24), and I couldn’t be happier. The quality is top-tier—lightweight, beautifully finished, and it gives the bike the deep, aggressive sound it should’ve had from the factory. Throttle response feels smoother, and the overall riding experience is noticeably more exciting.

Huge shoutout to Bill from Bills Exhaust. His communication was excellent from start to finish—quick replies, honest info, and genuinely great customer service. The exhaust shipped fast with no delays, no issues, and no backorder nonsense. Exactly what you want when ordering parts for your bike.

If you’re on the fence, go for it. The exhaust is incredible, and Bill makes the whole process even better. Highly recommend!

Brian Brayley

12/01/2025

71856AKN Arrow Race-Tech Slip-on Exhaust, Aluminum Dark for Kawasaki Z900 17-24

Arrived super quick

Arrived super quick, no complaints

Anonymous

11/20/2025

IN STOCK M4 Exhaust GP Black Slip on GSXR600/750 2011-2025 SU6112-GP

Great customer support

Great customer support, fast shipping and delivery , and great quality exhaust . Sounds nice 👍🏼 would definitely recommend

Atticus

11/13/2025

IN STOCK M4 Exhaust GP19 Black Slip On 2009 - 2025 2026 ZX6R zx6 KA6922-GP19

Fast service and the pipe is very well made

Fast service and the pipe is very well made.

72188PD Arrow H.D.1250 Pan America 20-25 Racing St. Steel De-Catalyzed Collector

Purchased the power core 4 along with the mega bomb header

Purchased the power core 4 along with the mega bomb header. Sounds great! Looks even better! Slammed them both on my 22’ KX 250f.

ROBERT T CLARK

11/11/2025

FMF Powercore 4 Muffler KX250F/X 2021-2023 042392 1821-2038

Was trying to find a reseller for Graves products. Stumbled upon this site. No hassles. Ships to Australia (big plus). Now I can mod my dream bike.
Exhaust is gnarly, obnoxious... exactly what I want! Makes all the right sounds.
I'd buy another one if I had another bike.
Super easy fitment, shaved off so much weight with the titanium build.
Absolute piece of art.

Nazzy

11/05/2025

Bill's Exhausts

Great price and amazing sound

Great price and amazing sound.

Michael Adams

10/27/2025

AKRAPOVIC Carbon Fiber Muffler NINJA 400 /500 2018-2025 S-K4SO6-APC 1811-3515

This system with a BT Moto tune sounds and feels amazing

This system with a BT Moto tune sounds and feels amazing. The weight reduction, power increase makes this bike handle even better.
The titanium exhaust system looks amazing.

Lou D

10/19/2025