PROX – Page 8 – Bill's Exhausts

PROX Piston Kit - Standard - KTM 50SX 01.6012.A

Regular price 575 SEK

Low stock (4 units)
PROX Piston Kit - Standard - KTM 50SX 01.6012.B

Regular price 575 SEK

In stock (89 units)
PROX Piston Kit - Standard - KTM 65SX 01.6022.A

Regular price 575 SEK

Low stock (4 units)
PROX Piston Kit - Standard - KTM 65SX 01.6022.B

Regular price 575 SEK

Very low stock (1 unit)
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PROX Piston Kit - Standard - KTM 125SX 01.6220.B

Regular price 1 198 SEK
PROX Piston Kit - Standard - 125SX 01.6220.A

Regular price 1 198 SEK

Low stock (4 units)
PROX Piston Kit - Standard - KTM 200EXC 01.6249.A

Regular price 1 342 SEK

Low stock (2 units)
PROX Piston Kit - Standard - MXZ 500 01.5595.000

Regular price 1 016 SEK

Very low stock (1 unit)
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PROX Piston Kit - +.10" - MXZ 500 01.5595.100

Regular price 839 SEK
PROX Piston Kit - +.05" - MXZ 500 01.5595.050

Regular price 1 016 SEK

Low stock (2 units)
PROX Piston Kit - 300EXC TPI '18-'19 01.6388.A

Regular price 1 821 SEK

Low stock (4 units)
PROX Piston Kit - Standard - 200EXC 01.6249.B

Regular price 1 342 SEK

Very low stock (1 unit)
PROX Piston Kit - 300EXC TPI 01.6388.B

Regular price 1 821 SEK

In stock (28 units)
PROX Piston Kit - KTM300EXC '17-'18 01.6387.B

Regular price 1 821 SEK

In stock (5 units)
PROX Piston Kit - 300EXC TPI '18-'19 01.6388.C

Regular price 1 821 SEK

In stock (6 units)
PROX Piston Kit - Beta RR300 '18-'19 01.7398.B

Regular price 1 917 SEK

In stock (61 units)
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PROX Ring Set 2.3122

Regular price 240 SEK
PROX Ring Set 2.1402

Regular price 527 SEK

Low stock (3 units)
PROX Ring Set 2.1111

Regular price 240 SEK

In stock (5 units)
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PROX Ring Set 02.5699.050

Regular price 154 SEK
PROX Ring Set 02.5699.100

Regular price 181 SEK

Low stock (3 units)
PROX Ring Set 02.5699.000

Regular price 240 SEK

Low stock (3 units)
PROX Ring Set 2.5603

Regular price 240 SEK

Low stock (2 units)
PROX Ring Set 2.5703

Regular price 240 SEK

Very low stock (1 unit)
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PROX Ring Set 02.2599.200

Regular price 185 SEK
PROX Ring Set 02.2599.150

Regular price 240 SEK

Low stock (4 units)
PROX Ring Set 2.5807

Regular price 240 SEK

In stock (7 units)
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PROX Ring Set 02.5802.000

Regular price 240 SEK
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PROX Ring Set 02.5802.100

Regular price 240 SEK
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PROX Ring Set 2.5906

Regular price 155 SEK
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PROX Ring Set 02.2599.050

Regular price 185 SEK
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PROX Ring Set 02.2599.000

Regular price 240 SEK
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PROX Ring Set 02.2599.100

Regular price 185 SEK
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PROX Ring Set 2.2697

Regular price 185 SEK
PROX Ring Set 02.5601.000

Regular price 240 SEK

Low stock (2 units)
PROX Ring Set 2.5597

Regular price 240 SEK

Very low stock (1 unit)
PROX Piston Rings 2.1227

Regular price 479 SEK

Low stock (3 units)
PROX Piston Rings 2.134

Regular price 479 SEK

Very low stock (1 unit)
PROX Piston Rings 2.3408

Regular price 479 SEK

In stock (6 units)
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PROX Piston Rings 2.2402

Regular price 356 SEK
PROX Piston Rings 2.334

Regular price 479 SEK

Very low stock (1 unit)
PROX Piston Rings 2.3337

Regular price 431 SEK

Low stock (4 units)
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PROX Piston Rings 2.6427

Regular price 368 SEK
PROX Piston Rings 2.4124

Regular price 240 SEK

Very low stock (1 unit)
PROX Piston Rings 2.6012

Regular price 240 SEK

Very low stock (1 unit)
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PROX Piston Rings 2.4336

Regular price 479 SEK
PROX Piston Rings 2.6225

Regular price 479 SEK

In stock (5 units)
PROX Piston Rings 2.6228

Regular price 349 SEK

Very low stock (1 unit)
Sold out

PISTON RINGS 02.6249 2.6249

Regular price 0 SEK
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PROX Piston Rings 2.6351

Regular price 479 SEK

Let customers speak for us

from 666 reviews

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