WPS-SP1

SP1 Chain Case Chain Link Belt Silent 11 Wide 70 Links SU-31170

Regular price ¥22,700 JPY

In stock (111 units)
SP1 Chain Case Chain Link Belt Silent 13 Wide 66 Links SU-31366

Regular price ¥26,100 JPY

In stock (644 units)
SP1 Chain Case Chain Link Belt Silent 13 Wide 68 Links SU-31368

Regular price ¥27,100 JPY

In stock (489 units)
SP1 Chain Case Chain Link Belt Silent 13 Wide 70 Links SU-31370

Regular price ¥27,700 JPY

In stock (621 units)
SP1 Chain Case Chain Link Belt Silent 13 Wide 72 Links SU-31372

Regular price ¥28,500 JPY

In stock (665 units)
SP1 Chain Case Chain Link Belt Silent 13 Wide 74 Links SU-31374

Regular price ¥29,400 JPY

In stock (442 units)
Sold out

SP1 Chain Case Chain Link Belt Silent 15 Wide 70 Links SU-31570

Regular price ¥38,300 JPY
SP1 Chain Case Chain Link Belt Silent 15 Wide 72 Links SU-31572

Regular price ¥43,400 JPY

In stock (319 units)
SP1 Chain Case Oil Seal Pol 03-108

Regular price ¥3,800 JPY

In stock (90 units)
SP1 Chain Case Oil Seal S-D 03-107

Regular price ¥3,800 JPY

In stock (26 units)
SP1 Chain Case Oil Seal S-D 03-107-01

Regular price ¥700 JPY

In stock (452 units)
SP1 Chain Case Oil Seal S-D 03-110-01

Regular price ¥1,300 JPY

In stock (303 units)
Sold out

SP1 Chain Case Seal S-D SM-03046

Regular price ¥1,600 JPY
SP1 Chain Case Seal S-D SM-03047

Regular price ¥800 JPY

In stock (1150 units)
SP1 Chain Case Seal S-D SM-03048

Regular price ¥1,100 JPY

In stock (1150 units)
Sold out

SP1 Chain Case Seal S-D SM-03350

Regular price ¥800 JPY
SP1 Chain Case Seal S-D SM-03351

Regular price ¥800 JPY

In stock (738 units)
SP1 Chain Tensioner A/C SM-03360

Regular price ¥4,800 JPY

In stock (53 units)
SP1 Chain Tensioner A/C SM-03364

Regular price ¥6,800 JPY

In stock (291 units)
Sold out

SP1 Chain Tensioner A/C SM-03365

Regular price ¥7,900 JPY
Sold out

SP1 Chain Tensioner Arctic SM-03353

Regular price ¥4,800 JPY
SP1 Chain Tensioner Pol 03-102-12

Regular price ¥5,100 JPY

In stock (253 units)
Sold out

SP1 Chain Tensioner Pol SM-03355

Regular price ¥8,400 JPY
SP1 Chain Tensioner Pol SM-03357

Regular price ¥11,400 JPY

In stock (617 units)
SP1 Chain Tensioner Pol SM-03358

Regular price ¥15,200 JPY

In stock (103 units)
Sold out

SP1 Chain Tensioner Rale Snow Bike SM-03361-SB

Regular price ¥8,300 JPY
SP1 Chain Tensioner S-D SM-03361

Regular price ¥7,900 JPY

In stock (23 units)
SP1 Chain Tensioner S-D SM-03362

Regular price ¥6,700 JPY

In stock (391 units)
SP1 Chain Tensioner S-D SM-03363

Regular price ¥8,700 JPY

In stock (584 units)
SP1 Chaincase Gasket A/C SM-03109

Regular price ¥1,800 JPY

In stock (1134 units)
SP1 Chaincase Gasket A/C SM-03227

Regular price ¥2,700 JPY

In stock (464 units)
SP1 Chaincase Gasket Ac/Yam SM-03129

Regular price ¥2,400 JPY

In stock (390 units)
SP1 Chaincase Gasket Pol SM-03107

Regular price ¥1,300 JPY

In stock (1150 units)
SP1 Chaincase Gasket Pol SM-03108

Regular price ¥1,500 JPY

In stock (759 units)
SP1 Chaincase Gasket Pol SM-03127

Regular price ¥4,200 JPY

In stock (432 units)
SP1 Chaincase Gasket Pol SM-03128

Regular price ¥4,200 JPY

In stock (630 units)
SP1 Chaincase Gasket Pol SM-03348

Regular price ¥2,100 JPY

In stock (569 units)
SP1 Chaincase Gasket Pol SM-03349

Regular price ¥2,300 JPY

In stock (358 units)
SP1 Chaincase Gasket Pol SM-03352

Regular price ¥1,600 JPY

In stock (403 units)
SP1 Chaincase Gasket S-D SM-03110

Regular price ¥1,800 JPY

In stock (575 units)
SP1 Chaincase Gasket S-D SM-03111

Regular price ¥1,500 JPY

In stock (785 units)
SP1 Chaincase Gasket S-D SM-03130

Regular price ¥2,400 JPY

In stock (581 units)
SP1 Chaincase Gasket S-D SM-03132

Regular price ¥2,400 JPY

In stock (478 units)
SP1 Chaincase Gasket S-D SM-03344

Regular price ¥1,800 JPY

In stock (482 units)
SP1 Chaincase Gasket S-D SM-03347

Regular price ¥1,800 JPY

In stock (343 units)
SP1 Chaincase Gasket Yam 03-160-04

Regular price ¥1,100 JPY

In stock (1127 units)
SP1 Chaincase Gasket Yam 03-160-07

Regular price ¥1,100 JPY

In stock (628 units)
Sold out

SP1 Chaincase Gasket Yam SM-03343

Regular price ¥2,300 JPY
SP1 Chaincase Gasket Yam SM-03345

Regular price ¥2,700 JPY

In stock (138 units)
SP1 Chaincase Gasket Yam SM-03346

Regular price ¥2,700 JPY

In stock (140 units)

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