SKU: 74577499440

Active Autowerke Performance Tune - BMW E39 540i (NLA)

$157.95 $175.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Active Autowerke Performance Tune - BMW E39 540i (NLA)ACTIVE AUTOWERKE E39 BMW 540i PERFORMANCE TUNE SOFTWARE Active Autowerke offers unparalleled performance software. Through careful remapping of the factory BMW DME tables, various elements such as ignition timing, fuel delivery, and part throttles are reworked to create performance gains. From the factory. there is inherent situations of a rough, cold start idle that makes for poor driveability. With the new Active Autowerke software, the camshaft

ACTIVE AUTOWERKE E39 BMW 540i PERFORMANCE TUNE SOFTWARE

Active Autowerke offers unparalleled performance software. Through careful remapping of the factory BMW DME tables, various elements such as ignition timing, fuel delivery, and part throttles are reworked to create performance gains. From the factory. there is inherent situations of a rough, cold start idle that makes for poor driveability. With the new Active Autowerke software, the camshaft vanos tables are also re-mapped to eliminate this rough idle scenario to a smoother, cold start idle. The Active Autowerke upgraded software is designed to operate with gasoline that has an average octane rating with full emissions to create a clean burning combustion with good AFR’s all within factory specifications.


Key Features:

-15+ HP gains throughout the RPM range
-Improved Gas Mileage
-Sportier throttle response
-Available for 91-93 octane
-Modified Vanos camshaft remapping eliminating rough cold start enable
-Smoother pulls through RPM band
-Off Road options for cars without cats
-Increase RPM Limiter for Manual Cars
-Expect Higher Gains with bolt on Modifications


Software Purchase Options: - When you purchase software you have 3 options to acquire it.
1) Locate an Active Autowerke Flash station equipped dealer near you and have it installed there.
2) Purchase a Simon tool and install the software yourself. Very useful if additional software upgrades are needed in the future.
3) Remove and mail Active Autowerke your ECU and we will install the software. Same day turnaround on all software with free 2nd day air to lower 48 states. See Tech Support for details on removal and mailing of ECU.

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: 74577499440

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4.5 ★★★★★
Based on 11 reviews
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ashlynnk
Lowell, US
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
A
Verified Purchase
Abby B
Whiting, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
E
Verified Purchase
EE
San Leandro, US
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026
K
Verified Purchase
Kate
Omaha, US
★★★★★ 5
Super cute, comfortable, practical, love that they are slip on
Size: 10.5, Color: Tobacco/Black
I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days. Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.
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Reviewed in the United States on January 27, 2026
T
Verified Purchase
Tami
Lowell, US
★★★★★ 5
Excellent quality!!!
Size: 10, Color: Ocean Breeze
Wow great quality!!! You get what you pay for that’s for sure!! The fabric is heavy-ish-indicative of quality fabric. Fit is spot on. I’m a barely size 10 (5’6” 160 lbs) and these shorts deliver!! The stretch is just perfect enough for comfort. Excited to wear these next summer!! Will watch for more sales so I can grab a couple more pairs. If you’re on the fence, get them!!
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Reviewed in the United States on December 4, 2025

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