SKU: 20198533254

ESR Fuel Pressure Regulator (1999-2005)

Sale price$195.75 Regular price$217.50
Save 10%

Pay in installments of $54.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Ms Ellicott
New York, US
★★★★★ 5
Natural solution
Size: 3.38 Fl Oz (Pack of 1)
Excellent moisturizer! Has a light fragrance and not oily. Only used for a few days so can't attest tolong term benefits.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
L
Verified Purchase
LW chicago
Louisville, US
★★★★★ 4
Raw Batana oil
Size: 5.07 Fl Oz (Pack of 1)
These Batana grease looks like what I need and want havent started using it as of yet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
G
Verified Purchase
Great buy.
West Palm Beach, US
★★★★★ 5
Great results!
Size: 5.07 Fl Oz (Pack of 1)
This Batana oil does exactly what it said it was suppose to do. My scalp and hair feels great after applying as directed. Will continue to use this product. Hair has improved greatly. Thank you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
N
Verified Purchase
Nailah
New York, US
★★★★★ 3
Not toooo sure of what to think
Size: 3.38 Fl Oz (Pack of 1)
Riding in the middleman this one.. Not toooooo sure of the outcome.. The item does not smell like the description.. Giving it a few to decide... Instruction are NOT clear as you wld think... Was this actually a product made originally or a knock off?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
F
Verified Purchase
Fringed Jewels
Los Angeles, US
★★★★★ 5
It seems to work well
Size: 3.38 Fl Oz (Pack of 1)
Smells like coffee as others have vlogged it should. I wanted raw cold-pressed. That’s description on Amazon. It’s not on jar so we’ll see.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026

recommand products