SKU: 49348417269

ESR Competition Radiators (1999-2005)

Sale price$357.75 Regular price$397.50
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Description

ESR Competition Radiators (1999-2005)Originally built and designed by Sam Henry of Springfield Dyno. This is the latest revision to the most effective radiator in the Spec Miata marketplace. There's a reason that so many winners and champions use these radiators, they work better than anything else out there. They have been used on 6 of the last 7 national Championship winning cars. This is a true triple pass radiator which channels the water from side to side multiple times ensuring a

Originally built and designed by Sam Henry of Springfield Dyno. This is the latest revision to the most effective radiator in the Spec Miata marketplace. There's a reason that so many winners and champions use these radiators, they work better than anything else out there. They have been used on 6 of the last 7 national Championship winning cars.

This is a true triple pass radiator which channels the water from side to side multiple times ensuring a substantially longer cooling time in the radiator and pulling even more heat out of the cooling system. Many try to copy, but none have been nearly as effective.

Three main attributes for this radiator are:

  1. Reduced cooling system operating temperature. We have consistently seen 20-30 degrees cooler temperatures running this new radiator vs a 54mm Koyo radiator or a few of the other copies of our radiator.
  2. Reduced intake system air temperatures. During controlled dyno tests, we have seen 15-20 degree drops on intake air temps.
  3. Reduced weight off the nose of the car. Compared to the Koyo, this new radiator weighs approx. 2.5lbs less when fully filled.

The simple facts are that if you keep the coolant temps below 190 degrees, you are going to make more power. Also, if the intake air temp is cooler, you will also make more power.

This is really one of the must haves if you want to make power for a whole National race distance, even tucked up in a tight draft.

Comes with optional install kit, which includes:

  • Recommended 16lb flip lock radiator cap
  • Pre-cut Gates upper radiator hose

    Also comes with optional gauge fittings, two 1/8 npt and one 1/4 npt. Allows you to install your water temp guage sending unit directly into radiator with no chance of leaks. You can put in sensors for water temp and water pressure and warning on temp or pressure.

    99-05 use top hose dayco 71679

    Vehicle Applications:

    • 1999-2005 Mazda Miata 1.6L & 1.8L NB1 & NB2
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 49348417269

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    Leon
    Bozeman, US
    ★★★★★ 4
    Good product. What you see is what you get.
    Color: 1-Navy Blue
    Material feels sturdy and was a perfect fit compatible for my iPad. There's adequate grip and padding for a comfortable yet slim feel. Magnets hold it close and in one position when propping it up for watching landscape videos. Back is translucent as advertised. Solid product, put it on as i opened my new ipad for immediate protection. Perfectly safe blind buy if you're also getting that 'frequently bought together' suggestion from Amazon.
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    Reviewed in the United States on June 1, 2026
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    Sue Fowler
    Dallas, US
    ★★★★★ 5
    Nice iPad case. Good price, lots of colors,
    Color: Papaya
    Nice iPad case. Well made, fits great. Love the color!
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    Reviewed in the United States on June 8, 2026
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    savvy_shopper101
    San Leandro, US
    ★★★★★ 5
    Excellent iPad case!
    Color: 1-Navy Blue
    Excellent case! Perfect for what I needed, very stable, flexible and the color is great. I've had it for almost a year now and there's no damage or wear. Would buy again! Easy to use, stable mechanism to stand up right and wonderful color options!
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    Reviewed in the United States on May 30, 2026
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    Summer
    Lexington, US
    ★★★★★ 5
    Bright & Pretty Hot Pink.
    Color: Pitaya Red, Color: Pitaya Red
    Very pretty and bright. It’s thick and great quality. Strong grip and doesn’t come off easily. Easy to clean when it gets dirty. It also has a nice backing. I prefer the transparent bright pink backing than the clear version. I love the strong magnetic for when I position it upwards. It can be positioned downwards too.
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    Reviewed in the United States on May 28, 2026
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    LDC
    Omaha, US
    ★★★★★ 5
    Very protective iPad case
    Color: 1-Navy Blue
    This MoKo iPad case is excellent! It fits perfectly and provides great protection without adding bulk. The navy blue color looks very sleek, and the translucent back shell is a nice touch. It’s super magnetic, with great padding. The smart cover works flawlessly with the auto wake/sleep feature, and the cutouts line up perfectly for Touch ID. Lightweight, durable, and a fantastic value!
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    Reviewed in the United States on May 24, 2026

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