PROX – Page 17 – Bill's Exhausts

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PROX Valve and Spring Kit 28.SIS2402-2

Sale price $331⁰⁰ NZD Regular price $396⁰⁰

In stock (29 units)
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PROX Valve and Spring Kit 28.SIS4335-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (10 units)
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$20.00 off
PROX Valve and Spring Kit 28.SIS4336-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰
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PROX Valve and Spring Kit 28.SIS4338-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (12 units)
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PROX Valve and Spring Kit 28.SES2414-1

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (11 units)
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PROX Valve and Spring Kit 28.SIS4341-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (22 units)
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PROX Valve and Spring Kit 28.SES6351-1

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (11 units)
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PROX Valve and Spring Kit 28.SES2444-1

Sale price $271⁰⁰ NZD Regular price $296⁰⁰

Very low stock (1 unit)
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PROX Valve and Spring Kit 28.SIS2414-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (10 units)
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PROX Valve and Spring Kit 28.SIS2444-2

Sale price $271⁰⁰ NZD Regular price $296⁰⁰

In stock (5 units)
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PROX Valve and Spring Kit 28.SES6353-1

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

In stock (6 units)
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PROX Valve and Spring Kit 28.SIS6351-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

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PROX Valve and Spring Kit 28.SIS6353-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

Low stock (2 units)
$1.00 off

PROX Gasket Kit - Complete 34.1115

Sale price $135⁰⁰ NZD Regular price $136⁰⁰

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PROX Gasket Kit - Complete 34.122

Regular price $152⁰⁰ NZD

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$21.00 off

PROX Gasket Kit - Complete 34.1212

Sale price $116⁰⁰ NZD Regular price $137⁰⁰
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PROX Intake Valve and Spring Kit 28.SIS1340-2

Sale price $254⁰⁰ NZD Regular price $274⁰⁰

Very low stock (1 unit)
PROX Gasket Kit - Complete 34.1218

Regular price $152⁰⁰ NZD

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PROX Gasket Kit - Complete 34.1223

Regular price $178⁰⁰ NZD

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PROX Gasket Kit - Complete 34.1224

Regular price $178⁰⁰ NZD
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PROX Gasket Kit - Complete 34.1312

Sale price $169⁰⁰ NZD Regular price $203⁰⁰

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PROX Gasket Kit - Complete 34.1227

Sale price $338⁰⁰ NZD Regular price $342⁰⁰

In stock (9 units)
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PROX Gasket Kit - Complete 34.1322

Regular price $169⁰⁰ NZD
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PROX Gasket Kit - Complete 34.1334

Sale price $313⁰⁰ NZD Regular price $316⁰⁰

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PROX Gasket Kit - Complete 34.1409

Regular price $178⁰⁰ NZD

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PROX Gasket Kit - Complete 34.1422

Sale price $363⁰⁰ NZD Regular price $366⁰⁰

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PROX Gasket Kit - Complete 34.1416

Regular price $211⁰⁰ NZD

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PROX Gasket Kit - Complete 34.2218

Sale price $119⁰⁰ NZD Regular price $120⁰⁰

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PROX Gasket Kit - Complete 34.2221

Regular price $127⁰⁰ NZD
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PROX Gasket Kit - Complete 34.2225

Sale price $161⁰⁰ NZD Regular price $162⁰⁰

In stock (7 units)
PROX Gasket Kit - Complete 34.2222

Regular price $127⁰⁰ NZD

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PROX Gasket Kit - Complete 34.2312

Sale price $127⁰⁰ NZD Regular price $129⁰⁰

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PROX Gasket Kit - Complete 34.2317

Sale price $127⁰⁰ NZD Regular price $129⁰⁰

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PROX Gasket Kit - Complete 34.2322

Sale price $135⁰⁰ NZD Regular price $136⁰⁰

In stock (20 units)
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$19.00 off

PROX Gasket Kit - Complete 34.2315

Sale price $110⁰⁰ NZD Regular price $129⁰⁰
PROX Gasket Kit - Complete 34.2401

Regular price $237⁰⁰ NZD

In stock (5 units)
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PROX Gasket Kit - Complete 34.2414

Sale price $178⁰⁰ NZD Regular price $180⁰⁰

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PROX Gasket Kit - Complete 34.2418

Regular price $237⁰⁰ NZD

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$19.00 off

PROX Gasket Kit - Complete 34.2319

Sale price $110⁰⁰ NZD Regular price $129⁰⁰
PROX Gasket Kit - Complete 34.242

Regular price $237⁰⁰ NZD

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PROX Gasket Kit - Complete 34.2426

Sale price $321⁰⁰ NZD Regular price $323⁰⁰

In stock (6 units)
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PROX Gasket Kit - Complete 34.3218

Sale price $186⁰⁰ NZD Regular price $190⁰⁰

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PROX Gasket Kit - Complete 34.3122

Sale price $127⁰⁰ NZD Regular price $128⁰⁰
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PROX Gasket Kit - Complete 34.3221

Sale price $186⁰⁰ NZD Regular price $190⁰⁰

Low stock (2 units)
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PROX Gasket Kit - Complete 34.3321

Sale price $195⁰⁰ NZD Regular price $198⁰⁰

In stock (5 units)
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PROX Gasket Kit - Complete 34.3224

Sale price $186⁰⁰ NZD Regular price $190⁰⁰

In stock (6 units)
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PROX Gasket Kit - Complete 34.3319

Sale price $195⁰⁰ NZD Regular price $198⁰⁰

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PROX Gasket Kit - Complete 34.3316

Sale price $195⁰⁰ NZD Regular price $198⁰⁰

Very low stock (1 unit)
PROX Gasket Kit - Complete 34.4021

Regular price $102⁰⁰ NZD

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$29.00 off

PROX Gasket Kit - Complete 34.3322

Sale price $169⁰⁰ NZD Regular price $198⁰⁰

Let customers speak for us

from 604 reviews

Perfect fit

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

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

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

IN STOCK 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

IN STOCK Vandemon Triumph Rocket 3R & GT 2500cc 2019-2025 Titanium Exhaust Manifold TRIUMROCKET3SSHEADR VA-11

Nice item

Well made, fit well, looks nice, priced decently compared to other brands. Satisfied with purchase.

Anonymous

09/17/2025

LEOVINCE LV-10 Slip-On Muffler - Black Edition GSX-S 1000 2022-2024 15245B 1811-4351

Waw

The Sound is just amazingand iI love it !

Maxime L

09/13/2025

M4 Exhaust Carbon Fiber Street Slayer Slip On 2009 - 2025 ZX6R KA6914

Thankss

09/11/2025

M4 Exhaust All Black Full System MT-09/SXR900 2021 - 2025 YA6932

very easy install

very easy install. makes it good for the neighbors and easy out for a trackday

DPGolino

09/02/2025

M4 Q1 Quiet Insert

great piece for my GSX-R 600

great piece for my GSX-R 600. Was easy to install. I ordered the level 1 baffle with the snap ring. Sounds great and has a little more punch.

08/27/2025

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

Very happy with my Austin Racing product!

Very happy with my Austin Racing product! Sounds great and look very good! It was almost a 8 weeks wait, so plan for it. They arrived decently packed and protected with several stickers.

Benjamin

08/26/2025

Austin Racing 2024-2025 DUCATI HYPERMOTARD 698 MONO TWIN EXIT SLIP-ON EXHAUST SYSTEM

Great product and excellent service

The product's quality is commendable, and the service provided exceeded expectations. Although the exhaust system was initially estimated to be delivered within 4-5 weeks due to a backorder, the item arrived within 1.5 weeks. Furthermore, communication was consistently effective, with regular email updates provided.

Dhiraj B

08/21/2025