SKU: 69423288964

MACE ELECTRONIC THROTTLE CONTROLLER TO SUIT BMW 5 SERIES 523I M52B25 M52TUB25 N52B25 2.5L I6

Sale price$111.60 Regular price$124.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 21 - Aug 26

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Description

MACE ELECTRONIC THROTTLE CONTROLLER TO SUIT BMW 5 SERIES 523I M52B25 M52TUB25 N52B25 2.5L I6The strict regulations that modern cars must adhere to these days mean any enjoyment you can have behind the wheel is quite limited. Unfortunately, the control systems put in place restrain the engine's performance and prevent you from experiencing its full potential. Our electronic throttle controllers are just a small device that can help you restore that exhilarating sensation youre currently missing out on without illegally interfering with any

The strict regulations that modern cars must adhere to these days mean any enjoyment you can have behind the wheel is quite limited. Unfortunately, the control systems put in place restrain the engine's performance and prevent you from experiencing its full potential. Our electronic throttle controllers are just a small device that can help you restore that exhilarating sensation you’re currently missing out on without illegally interfering with any major componentry.

The factory drive-by-wire system actually dulls down throttle response and, in turn, makes the engine feel as though it's lacking power until a certain throttle percentage is achieved. Even then, specific conditions need to be met for the engine to make peak power. This can become quite frustrating and even unsafe in some circumstances. The Mace throttle controller eliminates this delay that exists between the throttle pedal and the butterfly in the throttle body, re-establishing throttle response and bottom-end acceleration.

In addition to sharper throttle response, our controllers also have an economy mode which basically does the opposite. By powering down the signal to the throttle, the delay in throttle response is magnified. The benefit being improved fuel economy over longer trips and smoother transitions in throttle percentage.

Modes:

  1. Sport Mode: 9 stages of increased accelerator response suited for spirited driving.
  2. Economy Mode: Reduced accelerator response suited for economy driving around towns and on highways.
  3. Normal Mode: Factory throttle response.

    Features:

    • OBD.II free, meaning power is sourced directly from the pedal and additional plugs are no longer required.
    • Temperature ranges from -40~+125 °C.
    • Previously set stage numbers are retained thanks to Power off memory function.
    • Improves low torque.
    • Plug and play, Using the same OEM harness.
    • Digital signal output AD/DA up to 10 Bit, efficiently responds to the original throttle signal.

    Contents:

    • 1 X Electronic throttle controller

    Vehicle Fitment Guide

    Notes:

    • Electronic throttle controllers for other makes and engines can be purchased through other listings.
    • Installation is quite simple and the modification is completely reversible within a couple of minutes. All kits include simple fitting and calibration instructions.
    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: 69423288964

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    4.7 ★★★★★
    Based on 17 reviews
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    Lauren
    Louisville, US
    ★★★★★ 5
    Great fit, truly doesn’t slide off heel
    Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
    I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
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    Reviewed in the United States on April 19, 2025
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    Elliz
    Cuba, US
    ★★★★★ 5
    So good - I’m buying MORE.
    Number of Items: 3, Color: White (3-pairs), Size: Medium
    I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 20, 2021
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    Judy Fletcher
    Waukegan, US
    ★★★★★ 5
    No slip low socks
    Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
    Perfect! ❤️ these!
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    Reviewed in the United States on February 16, 2026
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    Susan
    Whiting, US
    ★★★★★ 4
    Stay put!
    Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
    Nice and thin, soft, and stay put. I wear an 8 shoe and don’t like a thick sock taking up room. These socks are a bit tight on big toe. Wish they came in large.
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    Reviewed in the United States on October 10, 2023
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    Stephanie Robnett
    Natrona Heights, US
    ★★★★★ 5
    The best
    Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
    The best no show socks I have found. Stay in place very well and hold up wash after wash. I have tossed all the other brands I’ve bought over the years and stocked up on these as I was tired of digging through the drawer hoping to find a clean pair.
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    Reviewed in the United States on December 8, 2024

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