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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    4.3 ★★★★★
    Based on 25 reviews
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    Brady
    Louisville, US
    ★★★★★ 4
    Sturdy rubber ball. Noise maker could be improved
    Color: Red
    I would have given it five stars because of how much, my dog loved it in the beginning. And shut us up holds true as a sturdy rubber ball. My only complaint is at with one of my dogs being a heavy chewer, she was able to bust the noise making part. The ball never broke open or anything. It just no longer makes noise. You can hear the piece rattling on the inside. The ball itself is still solid tho
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 6, 2026
    S
    Verified Purchase
    Shop Shop
    Louisville, US
    ★★★★★ 1
    POOR QUALITY WHILE OVER PRICED
    Color: Brown
    Like so many others said, the sound box in this ball is faulty. lasted ONLY for 30seconds. My dog loves the giggle ball I purchased prior so I knew she would like this as well. Well, she did, for that whole 30 seconds. Both of us were so disappointed we could not further our play. Plus this ball was so much smaller than expected for the cost. I would not have minded the cost had this ball been on the ball! Don't purchase this item. Buy the giggle ball instead if you haven't already. UPDATE... Ran across this message at a later date and I would like to thank the sellers at Mewlmart for their response and showing the best business practices as stated in their response below. ----------------------- We sincerely apologize for any inconvenience regarding your order and would like to offer you a full refund for your purchase. If you would like a full refund: please reply 'Full refund'. We hope that you give us another chance. Thank you very much. Best regards, Mewlmart ----------------------- Only thing is I wish I had seen their message earlier, as I believe the window of opportunity for a refund may no longer be applicable. But who knows, they may reach out and still honor it when they review this review. Will update if that happens as it is worth mentioning the extra mile they may take. I am sure I would just then turn around and buy another product from them, giving them another try:)
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    Reviewed in the United States on January 2, 2024
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    Donna A.
    Los Angeles, US
    ★★★★★ 5
    Brody loves the Owl ball
    Color: Brown, Color: Brown
    My dog loves this ball! He destroys every toy! He loves balls but he destroys all of them. He loves Owl ball! It’s challenging for him to pick up & loves the sound. Best toy he has! Keeps him entertained & he can’t destroy it!!
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    Reviewed in the United States on March 21, 2026
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    Tarheel1979
    Whiting, US
    ★★★★★ 5
    Great toy
    Color: Red
    Indestructible by my Boxers
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    Reviewed in the United States on March 21, 2026
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    Mike Salas
    Pawtucket, US
    ★★★★★ 2
    Not for aggressive chewers
    States it's for aggressive chewers, lasted 48 hours. She did enjoy it, but it was short lived.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 29, 2026

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