Active Autowerke Performance Software - 2019+ M340i X3 X4 (B58)
SKU: 20188607971

Active Autowerke Performance Software - 2019+ M340i X3 X4 (B58)

Sale price$311.40 Regular price$346.00
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Description

Active Autowerke Performance Software - 2019+ M340i X3 X4 (B58)Please NOTE that BMW dealers now have the technology to flag your vehicle as having the DME modified even if the flash has been removed and replaced with the stock tune and this may impact your cars warranty. You accept full responsibility for the purchase and use of this aftermarket tune for your vehicle. Active Autowerke offers unparalleled performance software. Through careful remapping of the factory BMW DME tables, various elements such as


Please NOTE that BMW dealers now have the technology to flag your vehicle as having the DME modified even if the flash has been removed and replaced with the stock tune and this may impact your cars warranty. You accept full responsibility for the purchase and use of this aftermarket tune for your vehicle.

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. 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 AFRs all within factory specifications.

NOTE: Dyno chart for M340 shows stock with AA B58 Catted Downpipe.


Active Autowerke's B58 Performance Software bundle includes stage 1, stage 2 and stage 2 with super high flow cat tunes! We have an option to include the Femto end user program and cable to enable you to do the software flash. WARNING - when flashing your ECU, it is important that you connect a battery charger to your car in order to provide a stable voltage source regardless of your battery condition and you must remove any sleep options on your laptop. If your car has updated software after November 2019, you must not purchase the Femto option and must send the ECU to us for flashing.


Key Features:
Up to 80whp Horspower gains throughout RPM range (vs stock, 58 vs stock tune w AA catted downpipe)
Up to 100 Ft/lbs torque gain
Recallibrated settings for a smoother and more responsive part throttle transition
Recallibrated settings for a smoother and more responsive power delivery
Modified Vanos camshaft remapping
Available "Burble" Maps
Free tech support and assistance
Multiple maps available for flashing at home (after initial reflash)

Available Options:

  • Cold start delete
  • Stage 1 or Stage 2 maps for 91-93 octane
  • Off Road Only Downpipe Map
  • Burble Option
  • Tuner flag removal
  • OBD Flashing Option (add Femto software and cable)
Performance Specs:
Up to 80 hp gains : Rear wheel HP measured on the dyno
Up to 100 Ft / LBs gains : Rear wheel FT/LBs measured on the dyno


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: 20188607971

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Tyler
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★★★★★ 5
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Size: X-Large, Color: Black
I'm 6'1", 215 with large shoulders and chest. "Athletic dad-bod." Nothing fits me perfectly. I'm constantly stuck between an XL and XXL shirt, and a 37x31 pant---so literally nothing fits me and if you're a big guy, we all know that most polo shirts look like crap and fit like garbage bags. The shiny tone first made me skeptical. I wasn't even going to take it out of the package. But for $19, I said screw it. It fits really well. Not slim fit, but not "Ralph Lauren trash bag regular fit." It's soft like textured silk. It looks good and is the perfect length if you're 6'-6'3. And no--I know your first thought with the texture and shine is "does it look like a cheesy club shirt on a NJ Italian guy?" Shockingly, no...it's actually really nice (yeah--I had the same thought). It's stretchy. It's relatively form fitting, and it's cool to the touch. I immediately bought 3 more. For $19--just buy it. You won't regret it.
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Eswaran Venkatesan
Cuba, US
★★★★★ 5
Good quality
Size: Small, Color: Teal 02
This Tshirt is comfortable and value to money. No need to IRON. Material quality I liked it.
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Reviewed in the United States on May 27, 2026
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Niko Garcia
Los Angeles, US
★★★★★ 4
Good shirt
Size: Medium, Color: Teal 02
Love the color and the design of the shirt. The small threads it’s made out of starting to come loose though. Now when look down at chest and stomach area, there are 15+ little strings that pop out of the shirt.
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Greg
Natrona Heights, US
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Awesome shirt!
Size: Medium, Color: Blue, Size: Medium, Color: Blue
This is a nice shirt! Let me start by saying I am 6 foot 2, 195pounds with about a 40 inch chest, 42 inches on a good day! Ha ha. I ordered a medium because I wanted an athletic fit. The medium fits just right. For those wanting a normal, roomier fit I would recommend the large for my size. I’ll get a lot of compliments when I wear this shirt. What I like about it is that it is wrinkle free and looks great, I would not wear it on a super hot day with a snug fit. I do live in Florida, so that makes a difference. I also ordered the black one, both the blue and the black look very good for dress /casual. It’s polyester so it’s not super soft, which is OK. That also means it does not shrink.
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Tara and Jeff
Lake Worth, US
★★★★★ 3
Nice shirt but seems to be confusion over the color/pattern.
Size: Medium, Color: Teal 02
Nice shirt. Looks sharp and feels comfy. Lightweight and breathable. Definitely an "upscale" polo that looks like it costs more than it does - so very happy with the value. Fits as expected for the size. The only issue is that I ordered a color and style called Teal-02 and they sent me Navy-01. The color and pattern is different. It's not bad, just not what I ordered. I requested a resend of the Teal...and got the same Navy color again. Annoying.
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Reviewed in the United States on May 7, 2026

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