TWIN AIR

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TWIN AIR Filter Dust Cover - KTM 154112DC

Regular price ¥4,000 JPY
TWIN AIR Filter Dust Cover - RM/RMZ 153215DC

Regular price ¥4,000 JPY

Very low stock (1 unit)
TWIN AIR Filter Dust Cover - RMX/DRZ/KXF 153156DC

Regular price ¥4,000 JPY

Low stock (4 units)
TWIN AIR Filter Dust Cover - Yamaha 152213DC

Regular price ¥4,000 JPY

In stock (10 units)
¥1,300 off
TWIN AIR Powerflow Air Filter Kit - Suzuki 153915C

Sale price ¥17,300 JPY Regular price ¥18,600

In stock (334 units)
TWIN AIR Pre-Oiled Air Filter 150004X

Regular price ¥7,000 JPY

In stock (102 units)
TWIN AIR Pre-Oiled Air Filter 150204X

Regular price ¥7,000 JPY

In stock (540 units)
TWIN AIR Pre-Oiled Air Filter 150206X

Regular price ¥7,000 JPY

In stock (597 units)
TWIN AIR Pre-Oiled Air Filter 150207X

Regular price ¥7,000 JPY

In stock (492 units)
TWIN AIR Pre-Oiled Air Filter 150209X

Regular price ¥7,000 JPY

In stock (916 units)
Sold out

TWIN AIR Pre-Oiled Air Filter 150210FRX

Regular price ¥7,300 JPY
TWIN AIR Pre-Oiled Air Filter 151009X

Regular price ¥7,000 JPY

In stock (693 units)
TWIN AIR Pre-Oiled Air Filter 151010X

Regular price ¥7,000 JPY

In stock (49 units)
TWIN AIR Pre-Oiled Air Filter 151116X

Regular price ¥7,000 JPY

In stock (452 units)
TWIN AIR Pre-Oiled Air Filter 151117X

Regular price ¥7,000 JPY

In stock (80 units)
TWIN AIR Pre-Oiled Air Filter 152012X

Regular price ¥7,000 JPY

In stock (1312 units)
TWIN AIR Pre-Oiled Air Filter 152213X

Regular price ¥7,000 JPY

In stock (2283 units)
TWIN AIR Pre-Oiled Air Filter 152215X

Regular price ¥7,000 JPY

In stock (405 units)
TWIN AIR Pre-Oiled Air Filter 153006X

Regular price ¥7,000 JPY

In stock (131 units)
TWIN AIR Pre-Oiled Air Filter 153215X

Regular price ¥7,000 JPY

In stock (1320 units)
Sold out

TWIN AIR Pre-Oiled Air Filter 153217X

Regular price ¥7,000 JPY
TWIN AIR Pre-Oiled Air Filter 154110X

Regular price ¥7,000 JPY

In stock (259 units)
TWIN AIR Pre-Oiled Air Filter 154112X

Regular price ¥7,000 JPY

In stock (316 units)
TWIN AIR Pre-Oiled Air Filter 154514X N/F 400/620/625 LC4 DUKE

Regular price ¥7,000 JPY

In stock (724 units)
TWIN AIR Pre-Oiled Air Filter 151119X

Regular price ¥7,000 JPY

In stock (891 units)
TWIN AIR Pre-Oiled Air Filter 151119FRX

Regular price ¥7,600 JPY

In stock (10 units)
TWIN AIR Air Filter - KXF250/450 151119

Regular price ¥6,200 JPY

In stock (20 units)
TWIN AIR Air Filter - TTR50 152378

Regular price ¥3,200 JPY

In stock (5 units)
TWIN AIR Air Filter - XR 150601FR

Regular price ¥7,000 JPY

In stock (20 units)
TWIN AIR Air Filter - KXF250/450 '06-'16 151119FRKIT NF 16 KX450F

Regular price ¥7,000 JPY

In stock (151 units)
TWIN AIR Air Filter - 700 Raptor 152908

Regular price ¥7,000 JPY

In stock (20 units)
TWIN AIR Air Filter - Rhino 660 152614

Regular price ¥4,800 JPY

Low stock (3 units)
Sold out

TWIN AIR Filter Dust Cover - KXF '06-'16 151119DC

Regular price ¥4,000 JPY
TWIN AIR Air Filter - Brute Force 151390

Regular price ¥6,200 JPY

In stock (5 units)
TWIN AIR Air Filter - LT-R450 '06-'11 153910

Regular price ¥6,200 JPY

In stock (5 units)
TWIN AIR Air Filter Bolt 177770

Regular price ¥6,200 JPY

Low stock (2 units)
TWIN AIR Air Filter Bolt 177772

Regular price ¥6,200 JPY

Low stock (2 units)
TWIN AIR Air Filter - CRF150R 150215

Regular price ¥6,200 JPY

In stock (9 units)
TWIN AIR Pre-Oiled Air Filter - CRF150R 150215X

Regular price ¥7,000 JPY

In stock (1017 units)
TWIN AIR Air Filter - KTM 154113

Regular price ¥6,200 JPY

In stock (11 units)
TWIN AIR Pre-Oiled Air Filter - KTM '07 154113X

Regular price ¥7,000 JPY

In stock (489 units)
Sold out

TWIN AIR Air Filter - KFX450 '07-'14 151802

Regular price ¥7,000 JPY
TWIN AIR Air Filter - Grizzly 152912

Regular price ¥4,800 JPY

In stock (9 units)
TWIN AIR Pre-Oiled Air Filter 150910X

Regular price ¥8,100 JPY

Very low stock (1 unit)
TWIN AIR Pre-Oiled Air Filter 150912X

Regular price ¥8,100 JPY

Low stock (3 units)
TWIN AIR Pre-Oiled Air Filter 150920X

Regular price ¥8,100 JPY

In stock (6 units)
Sold out

TWIN AIR Pre-Oiled Air Filter 151914FRX

Regular price ¥7,300 JPY
TWIN AIR Pre-Oiled Air Filter 152611X

Regular price ¥6,200 JPY

In stock (16 units)
TWIN AIR Pre-Oiled Air Filter 152614X

Regular price ¥6,200 JPY

In stock (20 units)
TWIN AIR Pre-Oiled Air Filter 152902X

Regular price ¥7,600 JPY

In stock (14 units)

Let customers speak for us

from 675 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