KX450F/KX450 19-23

¥25,300 off
AKRAPOVIC Evolution Exhaust - Titanium KX450F 2019-2023 S-K4MET8-BNTA 1820-1884

Sale price ¥143,000 JPY Regular price ¥168,300

Backordered
Sold out
¥15,600 off
FMF 4.1 RCT Exhaust with MegaBomb - Anodized Titanium KX 450 F/X 2019- 2023 042373 1820-1844

Sale price ¥176,500 JPY Regular price ¥192,100
FMF PowerCore 4 HEX Muffler KX450F 2019-2022 042367 1821-1886

Regular price ¥64,900 JPY

In stock (11 units)
Sold out
¥22,300 off

PRO CIRCUIT Ti-6 Full Exhaust KX450F 2019-2022 0321945F

Sale price ¥201,300 JPY Regular price ¥223,600
¥1,700 off

PRO CIRCUIT T-6 Full Exhaust KX450F 2019-2022 0121945G

Sale price ¥157,100 JPY Regular price ¥158,800

In stock (6 units)
¥2,000 off

PRO CIRCUIT Ti-6 Pro Exhaust KX450F 2019-2022 0321945FP

Sale price ¥201,300 JPY Regular price ¥203,300

In stock (18 units)
PRO CIRCUIT T-6 Muffler KX450F 2019-2022 0121945A

Regular price ¥115,300 JPY

In stock (18 units)
FMF Exhaust Replacement Decal - Powercore 4 014846 4320-2204

Regular price ¥2,800 JPY

Low stock (4 units)
MOOSE RACING Exhaust Gasket Kit 823073MSE

Regular price ¥1,400 JPY

Low stock (2 units)
¥500 off

MOOSE RACING Triple Foam Air Filter - Kawasaki 1-40-48TRI

Sale price ¥6,600 JPY Regular price ¥7,100

Very low stock (1 unit)
MOOSE RACING Pre-Oiled Air Filter - KX 450 P1-40-48

Regular price ¥5,600 JPY

In stock (6 units)
MOOSE RACING Air Filter - KX 450 F 1-40-48

Regular price ¥5,300 JPY

In stock (20 units)
DYNOJET Power Commander-6 - KX 450 F /X 2016-2021 PC6-17069

Regular price ¥76,900 JPY

Low stock (2 units)
¥300 off

K & N Oil Filter KN-207

Sale price ¥2,000 JPY Regular price ¥2,300

In stock (20 units)
¥300 off

MOOSE RACING Oil Filter - Kawasaki DT-09-40

Sale price ¥1,000 JPY Regular price ¥1,300

In stock (20 units)
PRO CIRCUIT Oil Filter Cover - KX450F PC4009-0015

Regular price ¥6,400 JPY

In stock (20 units)
Sold out

MOOSE RACING Oil Filter Hardware Kit - Kawasaki 23-026

Regular price ¥1,300 JPY
Sold out
¥4,700 off

MOOSE RACING Race Fit Radiator Hose Kit - Blue - Kawasaki KAW-92BU

Sale price ¥41,000 JPY Regular price ¥45,700
Sold out
¥4,700 off
MOOSE RACING Race Fit Radiator Hose Kit - Green - Kawasaki KAW-92GN

Sale price ¥41,000 JPY Regular price ¥45,700
¥1,700 off

MOOSE RACING OEM Fit Radiator Hose Kit - Blue - Kawasaki KAW93-BL-M

Sale price ¥24,900 JPY Regular price ¥26,600

Low stock (2 units)
Sold out
¥1,700 off

MOOSE RACING OEM Fit Radiator Hose Kit - Green - Kawasaki KAW93-GN-M

Sale price ¥24,900 JPY Regular price ¥26,600
Sold out

MOOSE RACING Radiator - Left - Kawasaki 1901-0897

Regular price ¥25,700 JPY
MOOSE RACING Radiator - Right - Kawasaki 1901-0898

Regular price ¥25,700 JPY

In stock (20 units)
¥200 off

PROX Steel Plates Kawasaki/Suzuki 16.S34018

Sale price ¥8,500 JPY Regular price ¥8,700

Very low stock (1 unit)
Sold out

MOOSE RACING Clutch Kit M90-264

Regular price ¥32,500 JPY
MOOSE RACING Steel Clutch Plates - Kawasaki M80-7323-7

Regular price ¥11,100 JPY

In stock (6 units)
MOOSE RACING Clutch Friction Plates M70-5356-8

Regular price ¥13,200 JPY

In stock (10 units)
¥2,900 off
PRO CIRCUIT Clutch Springs CSK19450-CS

Sale price ¥11,600 JPY Regular price ¥14,500

In stock (17 units)
ATHENA Complete Gasket Kit P400250900068

Regular price ¥36,100 JPY

Low stock (2 units)
ATHENA Top End Gasket Kit P400250600068

Regular price ¥13,300 JPY

Very low stock (1 unit)
Sold out

ATHENA Race Gasket Kit R2506-068

Regular price ¥11,100 JPY
MOOSE RACING Top End Gasket Kit 8100023MSE

Regular price ¥14,100 JPY

Low stock (2 units)
MOOSE RACING Inner Clutch Gasket 816291MSE

Regular price ¥4,000 JPY

In stock (8 units)
MOOSE RACING Valve Cover Gasket 817924MSE

Regular price ¥3,400 JPY

Very low stock (1 unit)
MOOSE RACING Race Piston Kit MPX3030

Regular price ¥62,000 JPY

Low stock (3 units)
MOOSE RACING Race Piston Kit MPX3033

Regular price ¥62,000 JPY

In stock (7 units)
Sold out
¥1,300 off

MOOSE RACING Ring Set - For 96 mm Piston CP9600C

Sale price ¥5,800 JPY Regular price ¥7,100
MOOSE RACING Ring Set - For 96 mm Piston CPN2-3780

Regular price ¥5,800 JPY

In stock (10 units)
MOOSE RACING Complete Motor Gasket Kit with Seals 8110027MSE

Regular price ¥35,400 JPY

In stock (15 units)
Sold out
ATHENA Connecting Rod Kit P40321035

Regular price ¥25,800 JPY
Hot Rods Crank Bearings K091

Regular price ¥13,500 JPY

In stock (9 units)
Hot Rods Counter Balancer Bearing Kit - Kawasaki BBK0016

Regular price ¥5,000 JPY

Low stock (3 units)
Hot Rods Transmission Bearings Kit TBK0021

Regular price ¥26,900 JPY

In stock (5 units)
Sold out

MOOSE RACING Gasket Clutch Inner 816329MSE

Regular price ¥3,600 JPY
MOOSE RACING Clutch Cover D70-2425MB

Regular price ¥25,200 JPY

In stock (8 units)
MOOSE RACING Clutch Cover Gasket 817716MSE

Regular price ¥900 JPY

In stock (20 units)
Sold out

REKLUSE Clutch Cover - KX450F RMS-0404047

Regular price ¥36,700 JPY
Sold out

MOOSE RACING Clutch Basket M363

Regular price ¥41,300 JPY
REKLUSE Clutch Cover - KX450F RMS-444

Regular price ¥28,700 JPY

Low stock (2 units)
Sold out
REKLUSE Clutch Basket RMS-4145

Regular price ¥47,900 JPY

Let customers speak for us

from 1284 reviews

Great overall!

Looks amazing, obvious weight benefit, great sound but loud.
Installation is relatively easy but instructions could be improved

Laurent

10/13/2026

Austin RS22 140mm - 2026 KTM 990 RCR RS22 DUAL UNDERSEAT BOX DELETE TITANIUM EXHAUST SYSTEM AR101

Best looking exhaust out right now

Best looking exhaust out right now. The picture posted isn’t quite correct. It’s a lot smaller way better looking. Exactly what I was looking for. It sounds amazing. It sounds contemporary and mean!

Terrell Houser

10/08/2026

Austin 2026 KTM 990 RCR SLIP-ON dB COMPLIANT & RACE EXHAUST SYSTEMS AR102

Bill’s delivered

Bill’s delivered. Build quality is outstanding, fit and finish is perfect. No problem at all installing. Sound is louder than oem but not too much to upset the neighbors. Well worth the Arrow build time wait. Thank you.

Melissa Zinser

09/23/2026

Arrow Exhaust Arrow Veloce Exhaust System Triumph Daytona 660 2024 71507VAN

Shippng took a while due to convolution of shipping to California

Shippng took a while due to convolution of shipping to California. But product was in excellent shape and install was easy

K.R. Liu

09/02/2026

AKRAPOVIC Slip-On Line Muffler - Carbon - BMW S1000XR 2020-2025 2026 /M1000XR 2024 S-B10SO13-HZC/1

Easy install except the springs

Easy install except the springs. Buy a 10” spring puller. Sounds great. Nice welds. Typical Akrapovic quality and Bill’ Exhaust was best price and quick shipment.

Stuart Moulton

08/14/2026

IN STOCK AKRAPOVIC Header - Titanium S1000RR 2021-2024 2025 2026 E-B10E8 1812-0401

Everything I expected it to be and more

Everything I expected it to be and more. Install was easy and it sounds great

Noah Crampton

08/05/2026

Arrow header GSXR 1000 R 2017-2025 Stainless Steel Racing Collector 71660mi

I love the exhaust!

I love the exhaust and it sounds AWESOME! Fits perfectly so cutting or trimming required.

Jeremy Anderson

07/30/2026

Professional fast and friendly. I love Bills Exhaust.

The new exhaust fits and looks absolutely perfect. Also the Best performing exhaust you can buy for this Triumph 765. Purchased from a great supplier. Bill’s exhaust are an excellent group to work with.

Anonymous

07/22/2026

LEOVINCE LV-14 R Exhaust System - 3-into-1 - Black - Street Triple 765 R/RS 15608BU

Outstanding product

The Italian made seat cover is made with pride, so the end result is an outstanding product. Thank you Bills Exhaust for the quick turnaround and support on this item.

Marcello Laudato

07/16/2026

Tappezzeria Italia Kawasaki Ninja ZX10RR 2021-2025 Seat Cover in Red and Black

Fast shipping and a great price.

Fast shipping and a great price

Sean Williams

AKRAPOVIC Race Muffler - Titanium ZX-10RR /R 2021-2025 2026 S-K10SO28-ASZTBL 1811-4142

Beautiful muffler

Beautiful muffler. Easy install. Perfect sound. High quality throughout. Completely changed the look of the bike. Love it. Expertly packaged in foam rubber so it arrived unscratched. Thanks Bill's.

David Johnson

07/14/2026

LEOVINCE GP One Slip-On Muffler SCL500 2023-2024 15131FBU 1811-4693

Sounds amazing and looks really good

You guys saved my butt with this, I couldn't get it in my area since one of the shops were having tariff issues and not ordering arrow at the moment. But you guys did everything plus more of ordering it checking it and shipping it off to me. I didn't want to go with any other exhaust and you guys delivered. I will forever appreciate you guys and recommend you in the future.

Marco Fraire

07/12/2026

71005VAN Arrow Racing Veloce Full Exhaust for Triumph Street Triple 765 RS 24-25

Great customer service and delivery I love my

Great customer service and delivery I love my exhaust!!!

Marissa Castro

07/10/2026

LEOVINCE GP Corsa Evo Full Exhaust - Z125 2017-2024 3394EU 1810-2679

After quite possibly the longest 42 day wait of my life my complete m4 exhaust was finally in my

After quite possibly the longest 42 day wait of my life my complete m4 exhaust was finally in my possession. Worth the wait and I’d order from bills again.

Daniel Trombley

06/10/2026

M4 Exhaust Carbon Fiber Slip-On 2017-2025 2026 Z900 KA9004

⭐️⭐️⭐️⭐️⭐️ Premium quality and perfect fit for the S1000RR

Installed on my 2025 BMW S1000RR and the fitment was absolutely perfect.

The titanium finish, weld quality, and overall construction are excellent. Sound is deeper, cleaner, and slightly louder than stock without being excessive.

After the first ride, the titanium started developing the beautiful blue heat coloration that Akrapovic is known for, which gives the exhaust an even more premium appearance.

I had previously tested an aftermarket replica, and while it was surprisingly good, the genuine Akrapovic stands out in overall refinement, finish quality, and how the titanium ages with heat cycles.

If you’re looking for an OEM-quality upgrade that complements the BMW perfectly, this exhaust is worth it.

Bill’s Exhausts also had the best price I could find, with fast shipping, no tax charged to Texas, and free shipping, making the purchase experience even better.

Highly recommended.

Francisco Pereira

06/04/2026

AKRAPOVIC Titanium Slip-On Line Muffler S1000R / S1000RR /M 1000 RR 2020- 2026 S-B10SO11-CBT 1811-3739