SKU: 74893245799

Water Methanol Pump - 557-100

Sale price$197.07 Regular price$218.97
Save 10%

Pay in installments of $54.74 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Water Methanol Pump - 557-100Overview: Take your forced induction ride to the next level with a Holley water meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water methanol injection, allowing you to safely run on lower octane pump gas! What makes the Holley water methanol system unique and light years ahead of competitive systems, is that the solenoid flow has been characterized within the ECU. Program in an exact flow

Overview:

Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on lower octane pump gas! What makes the Holley water/methanol system unique and light years ahead of competitive systems, is that the solenoid flow has been characterized within the ECU. Program in an exact flow amount into the software, and that flow is injected into the engine. This is critical to ensure that neither too little (causing engine damage), nor too much (causing a large loss in power) water/methanol mix is injected into the engine. Select the exact percentage of water/methanol mix to be delivered vs. the percentage of fuel flow present, at any RPM and load. This makes tuning a very simple and accurate process. All components are designed to be compatible with water/methanol mix of up to 50% methanol. The Water/Meth solenoids are run by an injector driver output. If an extra output is not available (as would be the case on a HP ECU driving 8 injectors), PN 554-115 can be purchased that can be driven by a low side PWM output.

Features:

    Application:

    Year Make Model Submodel Engine Size
    Universal

    Specs:

    Amp Draw 7.5A @ 140PSI
    Brand Holley EFI
    Emission Code 5
    Inlet / Outlet Size 3/8" - 18 NPT
    Max Pressure 145 PSI
    Product Type Water Methanol part
    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: 74893245799

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.0 ★★★★★
    Based on 13 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    D
    Verified Purchase
    Debra R Singleton
    West Palm Beach, US
    ★★★★★ 5
    Amazon Essentials Women's High Stretch Jeans
    Size: 14, Color: Iced Blue Light Wash
    Amazon Essentials Women's High Stretch Jeans receives positive reviews from me for their significant stretch, comfort, and flattering fit. The jeans are great for everyday wear, they feel soft and thick yet move well. Although some folks find sizing inconsistent, occasionally needing to size up or experiencing a slightly odd fit in certain areas. They're praised for looking good, offering good value, and being versatile enough for various occasions. Sizing can be hit-or-miss for some, but not for me.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 31, 2025
    A
    Verified Purchase
    Amazon Customer
    Waukegan, US
    ★★★★★ 5
    Super comfortable
    Size: 8, Color: White
    These are high quality fabric.. Not thin and flimsy buy good fabric. Fit me like a glove. I love them and they are very comfortable.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 29, 2026
    I
    Verified Purchase
    Isabel
    Chelsea, US
    ★★★★★ 4
    Size down.
    Size: 8 Long, Color: Iced Blue Light Wash
    They are high stretch so I would size down from your usual size. I have bought size 10 in their brand and noticed the two previous I've purchased before this one were loose. So when I purchased this one I sized down and they fit good to me. I got long so they are LONG. And the regular would probably fit at your ankle or above. The only reason why I didn’t give it 5 stars was bc I don’t feel it mid rise to me it feels like high rise but I don’t feel them uncomfortable and also THEY ARE NOT SKINNY JEANS. They are straight leg and a tad bit loose so if you want stretch and skinny jeans these are not the ones for you. I only bought them thinking they were like the picture but it’s false advertisement.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 28, 2026
    M
    Verified Purchase
    Maegen Jackson
    Louisville, US
    ★★★★★ 3
    These Are NOT Skinny Jeans.
    Size: 18, Color: Medium Blue
    Unfortunately, I'm having to return mine. I purchased these expecting to receive skinny jeans and these are not skinny jeans. These are a relaxed fit, straight leg jean. I'm not too sure about the stretch because they were so big in the leg, I couldn't really tell how well they do stretch. They feel like a nice quality jean other than the fit and they're comfortable around the waist.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on October 20, 2025
    C
    Verified Purchase
    West Palm Beach, US
    ★★★★★ 5
    Perfect fit for 5'10
    Size: 10 Long, Color: White
    White jeans size 10 long fit perfectly. Im 5'10 130 pounds Always have trouble with length and overall fit. These were on sale for less than 11$! Material has some stretch, not too much. I'm going to hang to dry don't want any shrinkage. Fit is less tight than an earlier version of these jeans.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 6, 2026

    recommand products