PROX – Page 13 – Bill's Exhausts

£3.00 off
PROX Crank Bearing and Seal Kit 23.CBS61003

Sale price £67⁰⁰ GBP Regular price £70⁰⁰

In stock (718 units)
PROX Exhaust Valve 28.1334-1

Regular price £30⁰⁰ GBP

In stock (169 units)
£1.00 off

PROX Crank Bearing and Seal Kit 23.CBS64003

Sale price £108⁰⁰ GBP Regular price £109⁰⁰

Low stock (2 units)
PROX Exhaust Valve 28.1402-1

Regular price £30⁰⁰ GBP

In stock (239 units)
PROX Exhaust Valve 28.1654-1

Regular price £41⁰⁰ GBP

In stock (42 units)
£2.00 off

PROX Exhaust Valve 28.3402-1

Sale price £26⁰⁰ GBP Regular price £28⁰⁰

In stock (120 units)
£2.00 off

PROX Exhaust Valve 28.1495-1

Sale price £26⁰⁰ GBP Regular price £28⁰⁰

Very low stock (1 unit)
PROX Exhaust Valve 28.2418-1

Regular price £23⁰⁰ GBP

In stock (143 units)
£2.00 off

PROX Intake Valve 28.1654-2

Sale price £26⁰⁰ GBP Regular price £28⁰⁰

In stock (54 units)
£1.00 off

PROX Intake Valve 28.1495-2

Sale price £19⁰⁰ GBP Regular price £20⁰⁰

In stock (114 units)
£2.00 off

PROX Intake Valve 28.2418-3

Sale price £15⁰⁰ GBP Regular price £17⁰⁰

In stock (111 units)
PROX Intake Valve 28.3402-2

Regular price £23⁰⁰ GBP

In stock (18 units)
PROX Exhaust Valve 28.1070-1

Regular price £19⁰⁰ GBP

Low stock (4 units)
PROX Intake Valve 28.1070-2

Regular price £12⁰⁰ GBP

Low stock (2 units)
£1.00 off

PROX Intake Valve 28.1226-2

Sale price £15⁰⁰ GBP Regular price £16⁰⁰

In stock (69 units)
PROX Exhaust Valve 28.1226-1

Regular price £23⁰⁰ GBP

In stock (87 units)
£1.00 off

PROX Exhaust Valve 28.1227-1

Sale price £23⁰⁰ GBP Regular price £24⁰⁰

In stock (274 units)
£2.00 off

PROX Intake Valve 28.1227-2

Sale price £15⁰⁰ GBP Regular price £17⁰⁰

In stock (245 units)
£1.00 off

PROX Intake Valve 28.1323-2

Sale price £15⁰⁰ GBP Regular price £16⁰⁰

In stock (223 units)
PROX Exhaust Valve 28.1338-1

Regular price £30⁰⁰ GBP

Low stock (3 units)
PROX Exhaust Valve 28.1323-1

Regular price £23⁰⁰ GBP

In stock (110 units)
PROX Exhaust Valve 28.1356-1

Regular price £23⁰⁰ GBP

In stock (7 units)
PROX Exhaust Valve 28.1381-1

Regular price £23⁰⁰ GBP

In stock (203 units)
£1.00 off

PROX Intake Valve 28.1356-2

Sale price £15⁰⁰ GBP Regular price £16⁰⁰

In stock (41 units)
£1.00 off

PROX Intake Valve 28.1381-2

Sale price £15⁰⁰ GBP Regular price £16⁰⁰

In stock (234 units)
PROX Exhaust Valve 28.2200-1

Regular price £19⁰⁰ GBP

In stock (80 units)
PROX Intake Valve 28.2200-2

Regular price £12⁰⁰ GBP

In stock (126 units)
Sold out

PROX Exhaust Valve 28.1407-1

Regular price £34⁰⁰ GBP
PROX Intake Valve 28.2487-2

Regular price £23⁰⁰ GBP

Low stock (2 units)
PROX Exhaust Valve 28.2661-1

Regular price £30⁰⁰ GBP

In stock (7 units)
PROX Intake Valve 28.2661-2

Regular price £23⁰⁰ GBP

In stock (18 units)
PROX Exhaust Valve 28.2487-1

Regular price £34⁰⁰ GBP

In stock (5 units)
PROX Exhaust Valve 28.2706-1

Regular price £30⁰⁰ GBP

Low stock (3 units)
PROX Exhaust Valve 28.6520-1

Regular price £41⁰⁰ GBP

In stock (89 units)
PROX Intake Valve 28.2706-2

Regular price £19⁰⁰ GBP

Low stock (4 units)
PROX Intake Valve 28.6520-2

Regular price £26⁰⁰ GBP

In stock (152 units)
PROX Valve Shims - 5 pack 29.74812

Regular price £8⁰⁰ GBP

In stock (9 units)
PROX Valve Shims - 5 pack 29.748125

Regular price £8⁰⁰ GBP

Very low stock (1 unit)
Sold out

PROX Valve Shims - 5 pack 29.74813

Regular price £8⁰⁰ GBP
PROX Valve Shims - 5 pack 29.748135

Regular price £8⁰⁰ GBP

Low stock (3 units)
PROX Valve Shims - 5 pack 29.74814

Regular price £8⁰⁰ GBP

In stock (8 units)
PROX Valve Shims - 5 pack 29.748145

Regular price £8⁰⁰ GBP

In stock (6 units)
PROX Valve Shims - 5 pack 29.74815

Regular price £8⁰⁰ GBP

In stock (12 units)
PROX Valve Shims - 5 pack 29.74816

Regular price £8⁰⁰ GBP

In stock (7 units)
PROX Valve Shims - 5 pack 29.748165

Regular price £8⁰⁰ GBP

In stock (11 units)
PROX Valve Shims - 5 pack 29.748155

Regular price £8⁰⁰ GBP

In stock (12 units)
PROX Valve Shims - 5 pack 29.748175

Regular price £8⁰⁰ GBP

In stock (20 units)
PROX Valve Shims - 5 pack 29.74817

Regular price £8⁰⁰ GBP

In stock (20 units)
PROX Valve Shims - 5 pack 29.74818

Regular price £8⁰⁰ GBP

In stock (6 units)
PROX Valve Shims - 5 pack 29.748185

Regular price £8⁰⁰ GBP

In stock (11 units)

Let customers speak for us

from 679 reviews

Thank you

Love my bandana

Tyrone white

12/06/2025

ZAN HEADGEAR Flydanna Head Wrap - Black Skull Paisley Z500

Incredible, the best!

Without a doubt, the best of the best, it's wonderful, it sounds incredible and the service is excellent.

Javier Villagran

12/05/2025

71207CP Arrow Competition Evo Full Titanium Exhaust for BMW S1000RR 2020-2025 / M1000RR 2020-2024

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