KB PERFORMANCE KB PERFORMANCE

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KB PERFORMANCE Piston Kit - Twin Cam KB409C.STD

Sale price ¥34,900 JPY Regular price ¥38,100

In stock (15 units)
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KB PERFORMANCE Piston Kit - Twin Cam KB409C.005

Sale price ¥34,900 JPY Regular price ¥38,100
¥4,100 off

KB PERFORMANCE Forged Piston Kit KB922C.STD

Sale price ¥44,200 JPY Regular price ¥48,300

Low stock (3 units)
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KB PERFORMANCE Piston Kit - Twin Cam KB409C.010

Sale price ¥34,900 JPY Regular price ¥38,100

In stock (19 units)
¥4,400 off

KB PERFORMANCE Forged Piston Kit - Twin Cam KB907C.STD

Sale price ¥47,600 JPY Regular price ¥52,000

In stock (7 units)
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB906C.STD

Sale price ¥47,600 JPY Regular price ¥52,000

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KB PERFORMANCE Forged Piston Kit - Twin Cam KB904C.STD

Sale price ¥47,600 JPY Regular price ¥52,000
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KB PERFORMANCE Piston Kit KB258.STD

Sale price ¥34,400 JPY Regular price ¥37,600

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KB PERFORMANCE Piston Kit KB258.030

Sale price ¥34,400 JPY Regular price ¥37,600

In stock (5 units)
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KB PERFORMANCE Piston Kit KB258.040

Sale price ¥34,400 JPY Regular price ¥37,600
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB909C.STD

Sale price ¥47,600 JPY Regular price ¥52,000

In stock (11 units)
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KB PERFORMANCE Piston Kit KB305.040

Sale price ¥36,300 JPY Regular price ¥39,600

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KB PERFORMANCE Piston Kit KB348.010

Sale price ¥43,500 JPY Regular price ¥47,500
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB660C.STD

Sale price ¥47,600 JPY Regular price ¥52,000

In stock (5 units)
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB661C.STD

Sale price ¥47,600 JPY Regular price ¥52,000
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB660C.005

Sale price ¥47,600 JPY Regular price ¥52,000

Very low stock (1 unit)
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB661C.010

Sale price ¥47,600 JPY Regular price ¥52,000

In stock (8 units)
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB661C.005

Sale price ¥47,600 JPY Regular price ¥52,000

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KB PERFORMANCE Forged Piston Kit - Twin Cam KB662C.STD

Sale price ¥47,600 JPY Regular price ¥52,000

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KB PERFORMANCE Forged Piston Kit - Twin Cam KB662C.005

Regular price ¥52,000 JPY
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB909LCA.STD

Sale price ¥60,500 JPY Regular price ¥66,200

Low stock (4 units)
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB660LCA.STD

Sale price ¥60,500 JPY Regular price ¥66,200

In stock (5 units)
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB660LCA.010

Sale price ¥60,500 JPY Regular price ¥66,200

Low stock (4 units)
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB661LCA.STD

Sale price ¥60,500 JPY Regular price ¥66,200

In stock (9 units)
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB662LCA.STD

Sale price ¥60,500 JPY Regular price ¥66,200

In stock (8 units)
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB662LCA.010

Sale price ¥60,500 JPY Regular price ¥66,200

In stock (8 units)
¥5,700 off

KB PERFORMANCE Super-Duty Piston KB661LCA.010

Sale price ¥60,500 JPY Regular price ¥66,200

Low stock (3 units)
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KB PERFORMANCE Piston - Evolution KB920C.020

Sale price ¥44,200 JPY Regular price ¥48,300
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KB PERFORMANCE Piston - Evolution KB920C.010

Sale price ¥44,200 JPY Regular price ¥48,300
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KB PERFORMANCE Piston - Evolution KB920C.005

Sale price ¥44,200 JPY Regular price ¥48,300

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KB PERFORMANCE Piston - Evolution KB921C.005

Sale price ¥44,200 JPY Regular price ¥48,300
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KB PERFORMANCE Piston - Evolution KB921C.010

Sale price ¥44,200 JPY Regular price ¥48,300
¥5,700 off

KB PERFORMANCE Piston Kit - Standard - M8 KB542LCA.STD

Sale price ¥63,100 JPY Regular price ¥68,800

In stock (15 units)
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KB PERFORMANCE Piston - Evolution KB921C.020

Sale price ¥44,200 JPY Regular price ¥48,300
KB PERFORMANCE PISTON KIT M8 117" +010 KB542LCA.010

Regular price ¥69,600 JPY

Low stock (4 units)
¥5,700 off

KB PERFORMANCE PISTON KIT M8 117" +020 KB542LCA.020

Sale price ¥63,100 JPY Regular price ¥68,800

In stock (6 units)
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KB PERFORMANCE PISTON KIT M8 117" +030 KB542LCA.030

Regular price ¥69,600 JPY
¥3,900 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB425C.STD

Sale price ¥42,400 JPY Regular price ¥46,300

Very low stock (1 unit)
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KB PERFORMANCE Piston Kit - Twin Cam 88 KB425C.005

Sale price ¥42,400 JPY Regular price ¥46,300

Low stock (3 units)
¥3,900 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB425C.010

Sale price ¥42,400 JPY Regular price ¥46,300

In stock (9 units)
¥3,900 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB425C.020

Sale price ¥42,400 JPY Regular price ¥46,300

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¥4,000 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.STD

Sale price ¥43,500 JPY Regular price ¥47,500
¥4,000 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.005

Sale price ¥43,500 JPY Regular price ¥47,500

Very low stock (1 unit)
¥3,900 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB425C.030

Sale price ¥42,400 JPY Regular price ¥46,300

Low stock (2 units)
¥4,000 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.010

Sale price ¥43,500 JPY Regular price ¥47,500

Low stock (2 units)
¥4,000 off

KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.020

Sale price ¥43,500 JPY Regular price ¥47,500

Very low stock (1 unit)
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KB PERFORMANCE Piston Kit - Twin Cam 88 KB426C.030

Regular price ¥47,500 JPY
¥6,100 off

KB PERFORMANCE Piston Kit - 124" - Standard - M8 KB576LCA.STD

Sale price ¥65,800 JPY Regular price ¥71,900

In stock (9 units)
¥6,100 off

KB PERFORMANCE Piston Kit - Standard - M8 KB595LCA.STD

Sale price ¥65,800 JPY Regular price ¥71,900

In stock (6 units)
¥6,100 off

KB PERFORMANCE Piston Kit - +.005" - M8 KB595LCA.005

Sale price ¥65,800 JPY Regular price ¥71,900

In stock (10 units)

Let customers speak for us

from 614 reviews

Perfect fit

Perfect fit.

Robert W Johnson

10/09/2025

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

Highly recommend

Came in just 4 week to Canada couldn’t be more happy with the overall sound and fit the pipe cleans the bike up so much

GixxerZen

10/07/2025

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

Amazing piece

Amazing piece, pro shade lens is a game changer. Looks super sharp too. Beautiful!

Alexander Au

10/05/2025

ARAI Vas-V Pro Shade Lens - Red Mirror 011075

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

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

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

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

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