SKU: 20198533254

ESR Fuel Pressure Regulator (1999-2005)

Sale price$195.75 Regular price$217.50
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

ESR Fuel Pressure Regulator (1999-2005)This regulator is engineered to work the same way Mazda designed the original system to work. With one regulator, with a return back to the tank. This ensures proper regulation of fuel pressure pulse to the fuel injectors. Other products on the market piggy back a second regulator that does not return excess pressure to the tank but bleeds it off with the injectors opening and closing. This can cause an uneven pressure and pulse that the injectors can

This regulator is engineered to work the same way Mazda designed the original system to work. With one regulator, with a return back to the tank. This ensures proper regulation of fuel pressure/pulse to the fuel injectors. Other products on the market piggy back a second regulator that does not return excess pressure to the tank but bleeds it off with the injectors opening and closing. This can cause an uneven pressure and pulse that the injectors can see, which can lead to fluctuating A/F ratios. In addition, regulating the fuel pressure by constricting the orifice size is tuning on the razors edge. You are limiting both the volume as well as the pressure of fuel supplied to the engine. This system does not limit the volume of the fuel, just the pressure it is delivered at. A large fluctuation of temperature when using "other products on the market" can lead to an extreme lean condition which can have catastrophic results, usually ending with an engine failure.

This kit is made to the highest standards using AN 6 and OE quick disconnect hardware. No hose clamps are used in this system at all. There is also no cutting or modifying of the OE hoses. All hoses are professionally made custom for the application and crimped to the fittings. The regulator is made by the leading manufacturer of fuel systems. This kit comprises all the best parts possible. Don't be fooled by cheaper inferior products on the market.

Our regulator is mounted in the trunk and not in the engine compartment. By mounting the kit in the trunk we keep it away from the heat of the engine compartment which can effect the temperature.

Adjustment is simple with one screw and the kit comes with a liquid filled gauge to monitor your pressure. There is also an additional un-used port on the regulator which can be used to add the optional fuel test port kit fitting.

Monitoring and tuning your AF ratio can help get the most performance out of your engine. This is the kit to have.

This kit comes complete with the following items:
  • Adjustable Fuel Pressure Regulator
  • Professionally made custom fuel lines (2)
  • Instructions
  • Liquid Filled Gauge
  • Replacement Fuel Line

Vehicle Applications:

  • 1999-2005 Mazda Miata 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: 20198533254

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4.4 ★★★★★
Based on 16 reviews
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Ryan
Draper, US
★★★★★ 5
Great shoes
Size: 6 Toddler, Color: Brown
Perfect for little ones
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Reviewed in the United States on May 28, 2026
M
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Mimie Hull
Port Orchard, US
★★★★★ 5
Great kids sandals
Size: 9 Toddler, Color: Taupe
These are cute and my kids say they’re comfortable! We got a few colors. Definitely would purchase again. They’ve got good quality.
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Reviewed in the United States on March 18, 2026
J
Verified Purchase
Jenna Smeyne
Houston, US
★★★★★ 1
Super wide
Size: 13 Little Kid, Color: Taupe
They are oddly very wide. Great for kids with wide chunky feet but for us it was not cute
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Reviewed in the United States on May 18, 2026
K
Verified Purchase
Kindle Customer
Whiting, US
★★★★★ 2
Nice but runs small
Size: 7 Big Kid, Color: Navy
The sandals are nice and not to hard or flimsy but they are cut very small.
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Reviewed in the United States on April 22, 2026
A
Alexandria Knox
Lowell, US
★★★★★ 4
Solid Kids Sandals, Overpriced Like Most Kids Shoes 🌞
Size: 11 Little Kid, Color: Brown, Size: 11 Little Kid, Color: Brown
My son hasn’t worn these yet since it’s December in Indiana and sandals + snow obviously don’t mix. 😂 So this review is based on first impressions rather than long term wear. That said, these seem wider than a lot of typical kids’ sandals, which I REALLY appreciate since we tend to have wider feet in our family. #hobbitfeet The quality feels pretty decent overall. They’re described as lightweight, and while they’re not insanely lightweight, they do have enough weight to feel semi-sturdy and not flimsy or cheap. I like the style and color, and I think they’ll work well for my son once warmer weather hits. My main complaint is the price. At just under $24 at the time of this review, it feels a little high for kids’ sandals and for what these are. I really feel like $20 MAX would make more sense. Kids shoes are almost always priced like adult shoes, even though they clearly use less material, and that’s hard for me to understand and wrap my mind around. Overall, these seem solid for daily wear, I just wish the price was a bit more reasonable and affordable.
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Reviewed in the United States on December 31, 2025

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