Koyo – Page 2 – Bill's Exhausts

Koyo 2016 Mazda MX-5 Miata 2.0L I4 (MT) Aluminum Radiator

Regular price $979⁰⁰ NZD

Very low stock (1 unit)
Koyo 2016-2018 Honda Civic 1.5L Radiator (Excl. Type R)

Regular price $910⁰⁰ NZD

Low stock (2 units)
Koyo 2017 Honda Civic Type-R Radiator

Regular price $1,055⁰⁰ NZD

Low stock (2 units)
Koyo 2022 Honda Civic 1.5L Turbo (MT and CVT) / 2023 Acura Integra All Aluminum Radiator

Regular price $1,327⁰⁰ NZD

Very low stock (1 unit)
Koyo 2022 Toyota GR86/ Subaru BRZ Aluminum Filler Neck

Regular price $163⁰⁰ NZD

Low stock (3 units)
Koyo 2022+ Toyota GR86 and Subaru BRZ Competition All-Aluminum Radiator

Regular price $1,051⁰⁰ NZD

In stock (5 units)
Koyo 22-25 Subaru WRX All Aluminum Performance Radiator

Regular price $1,075⁰⁰ NZD

In stock (9 units)
Koyo 23+ Honda Civic Type R (FL5) All Aluminum Radiator

Regular price $1,052⁰⁰ NZD

Low stock (3 units)
Koyo 25 Row Oil Cooler 11.25in x 7.5in x 2in (AN-10 ORB provisions)

Regular price $536⁰⁰ NZD

In stock (11 units)
Koyo 35 Row Oil Cooler 11.25in x 11in x 2in (-10AN ORB provisions)

Regular price $829⁰⁰ NZD

Low stock (3 units)
Koyo 68-73 Datsun 510 1.6L (MT) Radiator

Regular price $864⁰⁰ NZD

In stock (5 units)
Koyo 70-74 Toyota Celica 1.6/2.0L I4 (MT) Radiator

Regular price $867⁰⁰ NZD

Low stock (2 units)
Koyo 70-78 Datsun 240/260/280Z (MT) Radiator

Regular price $986⁰⁰ NZD

Very low stock (1 unit)
Koyo 71-74 Toyota Corolla 1.6L TE27/TE28/TS21 Manual Radiator

Regular price $822⁰⁰ NZD

Low stock (3 units)
Koyo 76-77 Toyota Celica 2.2L I4 (MT) Radiator

Regular price $833⁰⁰ NZD

Low stock (3 units)
Koyo 83-85 Mazda RX-7 fits 1.1/1.3L MT (Includes GSL-SE Trim)

Regular price $834⁰⁰ NZD

In stock (5 units)
Koyo 84-87 Toyota Corolla GT-S 1.6L 4AGE AE86 Radiator

Regular price $875⁰⁰ NZD

Low stock (3 units)
Koyo 84-87 Toyota Corolla RWD w/ 3SGE BEAMS 2.0L Engine Swap Manual Radiator

Regular price $918⁰⁰ NZD

Low stock (3 units)
Koyo 86-88 Mazda RX-7 FC NA/Turbo (MT) Radiator

Regular price $841⁰⁰ NZD

In stock (8 units)
Koyo 86-92 Toyota Supra NA/Turbo MT Only (USDM Vehicles Req. M16x1.5 Plug) Radiator

Regular price $906⁰⁰ NZD

In stock (9 units)
Koyo 88-91 Honda Civic / CRX EF Chassis w/B-Series (Manual Transmission) All-Aluminum Radiator

Regular price $699⁰⁰ NZD

Low stock (2 units)
Sold out
Koyo 88-99 BMW 3-Series inc. E36 M3 (MT / 6 Cyl. ONLY) Radiator

Regular price $802⁰⁰ NZD
Koyo 89-92 Mazda RX-7 1.3L FC NA/Turbo (MT) N-FLO Technology Radiator *OE Shroud Requires Trimming*

Regular price $930⁰⁰ NZD

Low stock (2 units)
Koyo 89-92 Mazda RX-7 1.3L Late FC Chassis Turbo & Non Turbo Radiator

Regular price $841⁰⁰ NZD

Low stock (4 units)
Koyo 89-92 Toyota Cressida 3.0L I6 Manual Only

Regular price $926⁰⁰ NZD

Low stock (3 units)
Koyo 89-94 Nissan 180SX/Silvia S13 SR20DET (MT) N-FLO (Dual Pass) Radiator

Regular price $883⁰⁰ NZD

In stock (6 units)
Koyo 89-94 Nissan 240SX S13 2.4L KA24E/DE (MT) Radiator

Regular price $798⁰⁰ NZD

In stock (6 units)
Koyo 89-97 Mazda MX-5 Miata 1.6/1.8L (MT) Radiator

Regular price $778⁰⁰ NZD

In stock (12 units)
Koyo 90-96 Nissan 300ZX 3.0L Non Turbo MT Radiator

Regular price $813⁰⁰ NZD

Very low stock (1 unit)
Koyo 90-96 Nissan 300ZX 3.0L Turbo (MT) Radiator

Regular price $787⁰⁰ NZD

In stock (9 units)
Koyo 91-05 Acura NSX 3.0/3.2L (MT) Radiator

Regular price $1,107⁰⁰ NZD

In stock (8 units)
Koyo 91-94 Subaru Legacy 2.2L Turbo (MT) Radiator

Regular price $798⁰⁰ NZD

Low stock (2 units)
Koyo 92-00 Honda Civic 1.6 DOHC (Will Not Fit Vehicles w/AC) Manual Transmission Radiator

Regular price $802⁰⁰ NZD

Low stock (2 units)
Sold out
Koyo 92-00 Honda Civic Si/Del Sol (MT / w/ 28mm Hoses) Radiator

Regular price $667⁰⁰ NZD
Koyo 92-96 Toyota Chaser/Mark II/Cresta (JZX90) 2.5L Turbo (M/T) Radiator (JDM Only)

Regular price $1,020⁰⁰ NZD

Low stock (4 units)
Koyo 93-95 Mazda RX-7 1.3L Turbo N-FLO (Dual Pass) Radiator

Regular price $935⁰⁰ NZD

Very low stock (1 unit)
Sold out
Koyo 93-95 Mazda RX-7 1.3L Turbo Radiator

Regular price $837⁰⁰ NZD
Koyo 93-98 Toyota Supra NA/Turbo (MT) Radiator

Regular price $998⁰⁰ NZD

In stock (5 units)
Koyo 94-01 Acura Integra (MT w/ Showa/Denso OEM) Radiator

Regular price $768⁰⁰ NZD

In stock (5 units)
Koyo 94-01 Acura Integra w/ K-Series Swaps (2.0/2.4L) Radiator

Regular price $844⁰⁰ NZD

Low stock (3 units)
Koyo 94-98 Nissan Skyline GT-R/GT-S 2.6L Turbo Radiator

Regular price $921⁰⁰ NZD

In stock (9 units)
Koyo 95-02 Nissan Silvia S14/S15 2.0L Turbo Radiator

Regular price $883⁰⁰ NZD

In stock (7 units)
Koyo 95-04 Toyota Tacoma V6 4x4 Manual Radiator

Regular price $1,024⁰⁰ NZD

Very low stock (1 unit)
Koyo 95-98 Nissan 240SX S14 2.4L KA24DE (MT) Radiator

Regular price $798⁰⁰ NZD

Low stock (2 units)
Koyo 96-00 Toyota Chaser JZX100 2.5L Inline 6 Turbo w/ Manual Trans Radiator

Regular price $1,002⁰⁰ NZD

In stock (6 units)
Sold out
Koyo 96-02 Toyota 4Runner 2.7L / 3.4L w/ 5MT Radiator (Requires Cap PN SK-C13)

Regular price $1,057⁰⁰ NZD
Koyo 97-00 Mitsubishi Evolution 4/5/6 Turbo (MT) Radiator *For use with 03-07 Evo Fan Shroud ONLY*

Regular price $912⁰⁰ NZD

Very low stock (1 unit)
Koyo 99-01 Subaru Impreza RS / Outback 99-02 Subaru Forester 2.5L Performance Radiator

Regular price $937⁰⁰ NZD

In stock (6 units)
Sold out
Koyo 99-05 BMW E46 (Non M3) M/T ONLY Radiator

Regular price $822⁰⁰ NZD
Koyo 99-05 Mazda MX-5 Miata 1.8L (MT) Radiator

Regular price $778⁰⁰ NZD

In stock (14 units)

Let customers speak for us

from 1217 reviews

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

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

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

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

Sounds amazing! Super easy

Sounds amazing! Super easy install!

Blaine Tyra

05/27/2026

M4 Exhaust Carbon Fiber Street Slayer Slip On 2006-2007 GSXR 600/750 SU6824

Sounds

Sounds great

05/18/2026

Graves Motorsports Zx-6r Cat-Back Slip-On Carbon Exhaust 2019-2025 2026 Exk-19zx6-Cbtc

Quick and easy install no modifications required.

These pipes are great! Very light compared to oem, around 30 minute install, andall parts fit perfectly. I also installed an arrow muffler, sounds great! Noticeable power improvement even without tuning.

Brandon M.

05/14/2026

Arrow Yamaha XT1200Z Super Tenere Exhaust Collector Pipes for ARROW slip-on stainless steel 72095PD

Sounds incredible

Bill’s Exhaust was super efficient with shipping. The exhaust sounds loud and incredible, much better than any videos I’ve seen on it. Install was easy enough. My bike’s a 2025 Honda Rebel 1100T and I needed to reuse the original gasket. To me, it looks amazing. Love it!

05/07/2026

VANCE & HINES Hi-Output Slip-On Muffler 48427