Koyo

We are a proud seller of Koyo All Aluminum Racing Radiators. These products have proven themselves on tracks all around the globe for decades. 

Koyo's racing catalog includes their R Series, V Series, and Hyper V Series radiators. The beauty of all these performance radiators is that they are direct drop in products. No modification is required to install any of Koyo's products. 

We offer free shipping on all Koyo products above $250 in the USA. 

SOLD OUT
Koyo Koyo 08-09 Mitsubishi Evolution X (AT/MT) / Ralliart Turbo Radiator
Regular Price
$450.00
Sale Price
$450.00
Regular Price
Unit Price
per 
SOLD OUT
Koyo Koyo 06-11 Honda Civic Si 2.0L Coupe/Sedan (MT) Radiator
Regular Price
$406.80
Sale Price
$406.80
Regular Price
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Koyo Koyo 03-07 Infiniti G35 Coupe / 03-06 G35 Sedan VQ35DE (MT) Radiator
Regular Price
$493.20
Sale Price
$493.20
Regular Price
Unit Price
per 
SOLD OUT
Koyo Koyo 02-05 Honda Civic Si 2.0L EP3 (MT) Radiator
Regular Price
$435.60
Sale Price
$435.60
Regular Price
Unit Price
per 
Koyo Koyo 02-06 Acura RSX Base/Type-S (MT) Radiator (Req. Non-OEM Rad. Cap)
Regular Price
$435.60
Sale Price
$435.60
Regular Price
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Koyo Koyo 01-05 Lexus IS300 (MT) Radiator
Regular Price
$464.40
Sale Price
$464.40
Regular Price
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per 
Koyo Koyo 91-05 Acura NSX 3.0/3.2L (MT) Radiator
Regular Price
$614.40
Sale Price
$614.40
Regular Price
Unit Price
per 
Koyo Koyo 94-01 Acura Integra (MT w/ Showa/Denso OEM) Radiator
Regular Price
$406.80
Sale Price
$406.80
Regular Price
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Koyo Koyo 94-01 Acura Integra w/ K-Series Swaps (2.0/2.4L) Radiator
Regular Price
$450.00
Sale Price
$450.00
Regular Price
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Koyo Koyo Honda Universal Pocket Radiator
Regular Price
$478.80
Sale Price
$478.80
Regular Price
Unit Price
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Koyo Koyo 70-78 Datsun 240/260/280Z (MT) Radiator
Regular Price
$529.20
Sale Price
$529.20
Regular Price
Unit Price
per 
Koyo Koyo 08-15 Subaru WRX/STI / 05-09 Legacy GT 13mm Coolant Reservoir Adapter (For Part# VH091662)
Regular Price
$20.40
Sale Price
$20.40
Regular Price
Unit Price
per 
Koyo Koyo 08-15 Subaru WRX/STI 8mm Coolant Reservoir Adapter (For Part# VH091662)
Regular Price
$20.40
Sale Price
$20.40
Regular Price
Unit Price
per 
Koyo Koyo Dual Pass Universal Heat Exchanger (Radiator) - Turbocharged & Supercharged Applications
Regular Price
$493.20
Sale Price
$493.20
Regular Price
Unit Price
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Koyo Koyo 12-15 Honda Civic SI 2.4L (MT) Radiator
Regular Price
$464.40
Sale Price
$464.40
Regular Price
Unit Price
per 
Koyo Koyo 04-08 Acura TSX 2.4L (MT) Racing Radiator - 25MM CORE
Regular Price
$505.20
Sale Price
$505.20
Regular Price
Unit Price
per 
Koyo Koyo 88-91 Honda Civic / CRX EF Chassis w/B-Series (Manual Transmission) All-Aluminum Radiator
Regular Price
$362.40
Sale Price
$362.40
Regular Price
Unit Price
per 
Koyo Koyo 2016 Mazda MX-5 Miata 2.0L I4 (MT) Aluminum Radiator
Regular Price
$522.00
Sale Price
$522.00
Regular Price
Unit Price
per 
Koyo Koyo 06-13 Lexus IS250/IS350 2.5L/3.5L (6MT/AT) Radiator
Regular Price
$507.60
Sale Price
$507.60
Regular Price
Unit Price
per 
Koyo Koyo 2020 Toyota Supra 3.0L Turbo Radiator
Regular Price
$870.00
Sale Price
$870.00
Regular Price
Unit Price
per 
Koyo Koyo 01-06 BMW E46 M3 3.2L I6 Radiator
Regular Price
$746.40
Sale Price
$746.40
Regular Price
Unit Price
per 
Koyo Koyo 88-99 BMW 3-Series inc. E36 M3 (MT / 6 Cyl. ONLY) Radiator
Regular Price
$421.20
Sale Price
$421.20
Regular Price
Unit Price
per 
Koyo Koyo 08-13 BMW M3 E90/E92/E93 4.0L (MT/DCT) Radiator
Regular Price
$812.40
Sale Price
$812.40
Regular Price
Unit Price
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Koyo Koyo 2017 Honda Civic Type-R Radiator
Regular Price
$562.80
Sale Price
$562.80
Regular Price
Unit Price
per 
Koyo Koyo Honda 92-00 Civic/93-97 Del Sol 1.6L w/ 32mm Inlet/Outlet Pipes MT Radiator
Regular Price
$362.40
Sale Price
$362.40
Regular Price
Unit Price
per 
SOLD OUT
Koyo Koyo 92-00 Honda Civic Si/Del Sol (MT / w/ 28mm Hoses) Radiator
Regular Price
$348.00
Sale Price
$348.00
Regular Price
Unit Price
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Koyo Koyo 83-85 Mazda RX-7 fits 1.1/1.3L MT (Includes GSL-SE Trim)
Regular Price
$439.20
Sale Price
$439.20
Regular Price
Unit Price
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Koyo Koyo 93-95 Mazda RX-7 1.3L Turbo N-FLO (Dual Pass) Radiator
Regular Price
$512.40
Sale Price
$512.40
Regular Price
Unit Price
per