TWIN AIR

TWIN AIR Powerflow Kit - CRF250R 150229C

Regular price $277⁰⁰ AUD

In stock (13 units)
TWIN AIR Air Filter - Beta 158089

Regular price $59⁰⁰ AUD

In stock (20 units)
TWIN AIR Backfire Pre-Oiled Air Filter 150229FRX

Regular price $69⁰⁰ AUD

In stock (13 units)
TWIN AIR Pre-Oiled Air Filter - Honda - CRF450/X/L 150226X

Regular price $66⁰⁰ AUD

In stock (1229 units)
TWIN AIR Filter Dust Cover - CRF450XL 150226DC

Regular price $59⁰⁰ AUD

In stock (9 units)
TWIN AIR Pre-Oiled Air Filter - Beta 158089X

Regular price $66⁰⁰ AUD

In stock (2106 units)
TWIN AIR Air Filter - Pre-Oiled 154117X

Regular price $66⁰⁰ AUD

In stock (1506 units)
TWIN AIR Filter Dust Cover - Suzuki 153220X

Regular price $66⁰⁰ AUD

In stock (648 units)
TWIN AIR Pre-Oiled Air Filter - Yamaha 152020X

Regular price $66⁰⁰ AUD

In stock (360 units)
Sold out

TWIN AIR Filter Dust Cover - Yamaha 152020DC

Regular price $38⁰⁰ AUD
TWIN AIR Air Filter - Can Am 156066P

Regular price $165⁰⁰ AUD

In stock (20 units)
TWIN AIR Air Filter - Kymco 158125

Regular price $59⁰⁰ AUD

In stock (13 units)
TWIN AIR Air Filter - Polaris RZR 156150P

Regular price $165⁰⁰ AUD

Low stock (2 units)
$4.00 off
TWIN AIR Air Filter - Honda 150012

Sale price $32⁰⁰ AUD Regular price $36⁰⁰

In stock (15 units)
TWIN AIR Air Filter CRF450R 2021-2023 /CRF250R 2022-2023 150230

Regular price $59⁰⁰ AUD

In stock (20 units)
Sold out

TWIN AIR Pre-Oiled Air Filter - Honda 150009X

Regular price $33⁰⁰ AUD
TWIN AIR Pre-Oiled Air Filter 150010X

Regular price $66⁰⁰ AUD

Very low stock (1 unit)
Sold out

TWIN AIR Filter Dust Cover - Honda 150100DC

Regular price $38⁰⁰ AUD
TWIN AIR Filter Dust Cover - Honda 150211DC

Regular price $38⁰⁰ AUD

In stock (7 units)
TWIN AIR Filter Dust Cover - Yamaha 152219DC

Regular price $38⁰⁰ AUD

In stock (6 units)
TWIN AIR Pre-Oiled Air Filter - Yamaha 152610X

Regular price $66⁰⁰ AUD

In stock (11 units)
TWIN AIR Pre-Oiled Air Filter - KTM 154004X

Regular price $38⁰⁰ AUD

Low stock (3 units)
TWIN AIR Pre-Oiled Air Filter - KTM 154006X

Regular price $38⁰⁰ AUD

Low stock (2 units)
TWIN AIR Air Filter 154118

Regular price $59⁰⁰ AUD

In stock (20 units)
TWIN AIR Replacement Backfire Filter 154224FR

Regular price $66⁰⁰ AUD

In stock (1055 units)
TWIN AIR Power Flo Kit - KTM/Husqvarna 154224C

Regular price $315⁰⁰ AUD

In stock (949 units)
Sold out
TWIN AIR Air Filter - TM125/144/250 158161

Regular price $59⁰⁰ AUD
TWIN AIR Air Filter - TM250/450 158162

Regular price $59⁰⁰ AUD

In stock (6 units)
TWIN AIR Pre-Oiled Air Filter - KTM /Husqvarna/Gas Gas 2023-2024 154118X

Regular price $66⁰⁰ AUD

In stock (2275 units)
Sold out

TWIN AIR Airbox Cover - KXF250/450 160084

Regular price $66⁰⁰ AUD
TWIN AIR Airbox Cover - CRF150R 160052

Regular price $66⁰⁰ AUD

Low stock (2 units)
Sold out

TWIN AIR Airbox Cover - KTM 160097 NOT FOR ANY 12-16 KTM

Regular price $72⁰⁰ AUD
Sold out

TWIN AIR Airbox Cover - CRF450R 160102

Regular price $66⁰⁰ AUD
Sold out

TWIN AIR Airbox Cover - KTM 160103 NF 16-19 FC450 > 10140224

Regular price $72⁰⁰ AUD
TWIN AIR Airbox Cover - Honda 160106

Regular price $66⁰⁰ AUD

Very low stock (1 unit)
TWIN AIR Airbox Cover - KTM/Husqvarna 160110

Regular price $72⁰⁰ AUD

In stock (20 units)
TWIN AIR Airbox Cover - Honda 160120

Regular price $72⁰⁰ AUD

Low stock (2 units)
TWIN AIR Airbox Cover - Honda 160124

Regular price $72⁰⁰ AUD

In stock (17 units)
TWIN AIR Airbox Cover - KTM/Husqvarna 160127

Regular price $72⁰⁰ AUD

In stock (20 units)
TWIN AIR Air Filter with Cage - Honda 150601P

Regular price $84⁰⁰ AUD

In stock (461 units)
TWIN AIR Small Exhaust Plug - 18mm - 40mm 177700NN

Regular price $18⁰⁰ AUD

In stock (20 units)
TWIN AIR Large Exhaust Plug - 27mm - 50mm 177710NN

Regular price $21⁰⁰ AUD

In stock (18 units)
TWIN AIR Exhaust Plug Display 177711NN

Regular price $216⁰⁰ AUD

Low stock (2 units)
TWIN AIR Mini Exhaust Plug - 18mm - 21mm 177701NN

Regular price $18⁰⁰ AUD

In stock (20 units)
TWIN AIR Radiator Sleeve - Honda 177759SL00

Regular price $83⁰⁰ AUD

In stock (5 units)
TWIN AIR Radiator Sleeve - Yamaha 177759SL20

Regular price $83⁰⁰ AUD

In stock (53 units)
TWIN AIR Radiator Sleeve - KTM/Husqvarna 177759SL40

Regular price $83⁰⁰ AUD

In stock (92 units)
TWIN AIR Radiator Sleeve - YZF 177759SL23

Regular price $83⁰⁰ AUD

In stock (553 units)
TWIN AIR Radiator Pressure Cap - 1.8 bar 177900

Regular price $56⁰⁰ AUD

In stock (20 units)
TWIN AIR Radiator Pressure Cap - 2.0 bar - KTM 177901

Regular price $56⁰⁰ AUD

In stock (19 units)

Let customers speak for us

from 672 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