WSM – Page 5 – Bill's Exhausts

WSM Top End Kit - Standard - Honda 420 54-231-20

Regular price ¥28,200 JPY

Low stock (3 units)
WSM Top End Kit - .25mm - Honda 420 54-231-21

Regular price ¥28,200 JPY

In stock (5 units)
WSM Top End Kit - .75mm - Honda 420 54-231-23

Regular price ¥28,200 JPY

Low stock (3 units)
WSM Top End Kit - .5mm - Honda 420 54-231-22

Regular price ¥28,200 JPY

Low stock (2 units)
WSM Top End Kit - 1mm - Honda 420 54-231-24

Regular price ¥28,200 JPY

Very low stock (1 unit)
Sold out

WSM Top End Kit - Standard - Honda 54-220-10

Regular price ¥28,000 JPY
WSM Top End Kit - +0.25 mm - Honda TRX400FW Foreman 54-220-11

Regular price ¥28,000 JPY

Low stock (4 units)
WSM Top End Kit - +0.75 mm - Honda 54-220-13

Regular price ¥28,000 JPY

Low stock (3 units)
Sold out

WSM Top End Kit - +1.00 mm - Honda 54-220-14

Regular price ¥28,000 JPY
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WSM Top End Kit - +0.50 mm - Honda 54-220-12

Regular price ¥28,000 JPY
WSM Top End Kit - Standard - Honda 54-230-10

Regular price ¥28,000 JPY

Low stock (2 units)
WSM Top End Kit - +0.25 mm - Honda 54-230-11

Regular price ¥28,000 JPY

Low stock (2 units)
Sold out

WSM Top End Kit - +0.50 mm - Honda 54-230-12

Regular price ¥28,000 JPY
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WSM Top End Kit - +1.00 mm - Honda 54-230-14

Regular price ¥28,000 JPY
Sold out

WSM Drive Shaft - Sea Doo 003-153

Regular price ¥28,000 JPY
Sold out

WSM Drive Shaft - Sea Doo 800 003-166

Regular price ¥28,000 JPY
Sold out

WSM Bearing Kit - Engine 010-189K

Regular price ¥27,900 JPY
¥13,500 off

WSM Top-End Rebuild Kit - Original Series - Standard 010-815-10

Sale price ¥27,700 JPY Regular price ¥41,200

Low stock (3 units)
WSM Steering Cable - Yamaha 002-051-05

Regular price ¥27,700 JPY

In stock (6 units)
WSM Top End Kit - +0.25 mm - Honda 54-231-11

Regular price ¥27,700 JPY

Low stock (2 units)
Sold out
WSM Top End Kit - +0.75 mm - Honda 54-231-13

Regular price ¥27,700 JPY
Sold out

WSM Top End Kit - +1.00 mm - Honda 54-231-14

Regular price ¥27,700 JPY
WSM Top End Kit - +0.75 mm - Honda 54-230-13

Regular price ¥27,500 JPY

Very low stock (1 unit)
¥31,200 off

WSM Stator Replacement - Armature 004-200

Sale price ¥27,500 JPY Regular price ¥58,700

Low stock (3 units)
WSM Steering Cable - Sea Doo 002-045-05

Regular price ¥27,500 JPY

Low stock (3 units)
WSM Steering Cable - Yamaha 002-059-04

Regular price ¥27,500 JPY

In stock (5 units)
WSM Piston Assembly 50-520-68

Regular price ¥27,400 JPY

Very low stock (1 unit)
WSM Piston Assembly 50-520-69

Regular price ¥27,400 JPY

Low stock (3 units)
WSM Piston Assembly 50-520-685

Regular price ¥27,400 JPY

In stock (5 units)
Sold out

WSM Piston Assembly 50-520-70

Regular price ¥26,800 JPY
WSM Steering Cable - Sea Doo 002-046-04

Regular price ¥26,500 JPY

Low stock (3 units)
WSM Top End Kit - +0.50 mm - Honda 54-228-12

Regular price ¥26,200 JPY

Low stock (2 units)
WSM Top End Kit - Standard - Honda 54-228-10

Regular price ¥26,200 JPY

In stock (6 units)
WSM Top End Kit - +0.25 mm - Honda 54-228-11

Regular price ¥26,200 JPY

Very low stock (1 unit)
WSM Top End Kit - +0.75 mm - Honda 54-228-13

Regular price ¥26,200 JPY

Very low stock (1 unit)
Sold out

WSM Top End Kit - +1.00 mm - Honda 54-228-14

Regular price ¥26,200 JPY
Sold out
WSM Steering Cable - Sea Doo 002-045-08

Regular price ¥26,100 JPY
Sold out

WSM Piston Assembly 50-520-5-645K

Regular price ¥25,600 JPY
WSM Drive Shaft Housing - Assembly 003-400-01

Regular price ¥25,300 JPY

In stock (197 units)
WSM Drive Shaft Housing - Assembly 003-405-01

Regular price ¥25,300 JPY

In stock (116 units)
Sold out

WSM Bearing Housing - Yamaha 003-402-01

Regular price ¥25,300 JPY
¥700 off

WSM Big Bore Piston Assembly Banshee 350 4x2 1987-2006 50-520-5-64K

Sale price ¥24,900 JPY Regular price ¥25,600

In stock (5 units)
Sold out
¥700 off

WSM Piston Assembly 50-520-5-655

Sale price ¥24,900 JPY Regular price ¥25,600
Sold out
¥700 off

WSM Piston Assembly 50-520-5-66

Sale price ¥24,900 JPY Regular price ¥25,600
¥700 off

WSM Piston Assembly 50-520-5-665

Sale price ¥24,900 JPY Regular price ¥25,600

Low stock (3 units)
WSM Piston Kit 50-254K

Regular price ¥24,900 JPY

In stock (5 units)
WSM Piston Kit 50-254-04K

Regular price ¥24,900 JPY

Low stock (2 units)
Sold out

WSM Piston Kit 50-251-04K

Regular price ¥24,400 JPY
Sold out

WSM Piston Kit 50-251K

Regular price ¥24,400 JPY
WSM Piston Kit 50-251-06K

Regular price ¥24,400 JPY

Very low stock (1 unit)

Let customers speak for us

from 630 reviews

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

IN STOCK Vandemon Ducati XDiavel & Diavel S 1260 Vandemon Titanium Exhaust System 2016-22 SKU: DUCDVLTITANEXHA VA-9

Excellent

William OGorman

10/16/2025

FEULING OIL PUMP CORP. Race Series Camshaft Kit - 521 Series 7262ST

Perfect fit

Perfect fit.

Robert W Johnson

10/09/2025

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

Highly recommend

Came in just 4 week to Canada couldn’t be more happy with the overall sound and fit the pipe cleans the bike up so much

GixxerZen

10/07/2025

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

Amazing piece

Amazing piece, pro shade lens is a game changer. Looks super sharp too. Beautiful!

Alexander Au

10/05/2025

ARAI Vas-V Pro Shade Lens - Red Mirror 011075

Box arrived damaged from UPS but because of the great packaging it was un-damaged. Fit perfectly on the bike.

Steven Langen

10/03/2025

IN STOCK 71776MI Arrow Racing Link Pipe, Stainless Steel for BMW F750GS/850GS/ 2021-2025 F 900 GS / F 900 GS Adventure ’24/25

Love it

Love it, love the sound, way lighter than stock exhaust.

Benjamin Bradley

10/01/2025

Graves Slip-on titanium exhaust CRF450RL/ L / LX 2019-2025 EXH-19C4X-SOT

Great exhaust

Great exhaust. Great feedback from Bill’s Exhausts, would order from here again.

Lawson Leatherwood

Austin Racing GP1R YAMAHA 2021-2025 MT09/FZ09 GP3 BOX DELETE RACE EXHAUST SYSTEM AR68

Sounds amazing! And came right in time before GAT

Sounds amazing! And came right in time before GAT. great customer service as well.

kawasakik4

09/25/2025

The Arrow Exhaust System I bought for my Tiger 900 Rally Pro is exactly what I was looking for

The Arrow Exhaust System I bought for my Tiger 900 Rally Pro is exactly what I was looking for. Lightweight, looks great, and sounds amazing!

Michael Leon

09/23/2025

72006VAN Arrow Veloce RACING Slip-on Exhaust, Aluminum Dark for Triumph Tiger 900 24-25

I love the Titanium Exhaust Manifold on my 2024 Rocket 3 GT

I love the Titanium Exhaust Manifold on my 2024 Rocket 3 GT, The fit was perfect and look was just as good. The true beauty is how it blued & red coloration after the first few heat cycles. The carbon fiber shields are a great touch but the fit and finish are fantastic. The bike looks great and performance is even better.

Andrew Herold

09/20/2025