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Description
Dinantronics X - 2015-2020 BMW M3/M4The DINANTRONICS X is the newest installment of the highly successful Dinan foray into inline tuning modules. Like its predecessors it is a highly engineered piece of computer hardware and software that enhances engine performance to levels the stock programming is not allowed to venture. It does this without affecting long term reliability or the functionality of on board diagnostic systems when run under recommended operating variables. Unlike its
The DINANTRONICS X is the newest installment of the highly successful Dinan foray into inline tuning modules. Like its predecessors it is a highly engineered piece of computer hardware and software that enhances engine performance to levels the stock programming is not allowed to venture. It does this without affecting long term reliability or the functionality of on-board diagnostic systems when run under recommended operating variables. Unlike its predecessor however, the DINANTRONICS X is Bluetooth smart and offers convenient access to the adjustment of power levels directly from the palm of your hand.
A further advancement beyond its entry level little brother, the DINANTRONICS SPORT, X connects to additional inputs and/or has a more refined tuning strategy that yields more power as a result. For those that do not wish to (or can't) alter their stock ECU with a more robust engine flash the DINANTRONICS X is a perfect alternative to satiate the craving for "more". Whichever level of engine tuning is ultimately chosen you can be sure to be pleased by the result. The Dinan Difference is possible by employing a full staff of talented engineers that are well rounded in many facets of automotive engineering and backed by a wealth of hands-on knowledge. Stemming from diverse backgrounds not only on racing teams but on standard factory production line vehicles, we have seen it all. Manipulating these signals/maps with an adept hand, all the while keeping an engine running at its best and with the most reliable power, is what Dinan is all about.
Download Installation Guide
NOTE(S): (1) Please refer to the recommended mapping notice below for important operating information. (2) D440-0128 is specific to the base model F8x M3/M4. If you have a Competition Package vehicle please use SKU D440-0137.
Features:
- More Power: Max gains of up to +69 HP and +81 lb-ft TRQ (Crank); +62 HP and +73 lb-ft TRQ (Wheel) on base models.
- Bluetooth smart (Android and iOS Compatible). App download / pairing process detailed within the installation instructions located under the Tech Resources dropdown below.
- 7 power levels and a bypass setting to choose from.
- Smooth and predictable power delivery.
- On board diagnostics and factory safeguards maintained.
- Unaffected by dealer factory updates.
- Plug and play installation.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Nice comfort and warm seat cover
Color: Pearl, Size: Front Seat Cushion-1 Pc
Used when traveled to Florida and back (3,000+ miles). Nice comfort and fit onto my Honda CRV seat good. It has straps and clips to hold it in place and rubber backing to keep it from moving around. In the winter it warms you up quickly, added bonus not expected. The quality is good, not problems with piling, or coming apart.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Best car seat cover!
Color: Grey, Size: Front Seat Cushion-1 Pc
The real deal! Comforting and saves my light colored seats. Works fine with heated seats too!
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Soft
Color: Pearl, Size: Front Seat Cushion-1 Pc
This is great to add abit of space and softness to a seat.
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Reviewed in the United States on May 25, 2026
★★★★★ 3
It’s great quality in terms of the fur, but the non-slip aspect lacks.
Color: Pearl, Size: Front Seat Cushions-2 Pcs
I wanted this not to provide extra cushion - although it does. I got this more to protect my seats in my sedan because they are tan in color and a suede-type material. So my jeans would bleed blue or black pants ect… would cause problems.
It works perfectly for the purpose I wanted it for. I no longer damage my seats, and it does not appear that my pants colors bleed into the sheepskin either. Or at least it’s so minimal I have not noticed. I even spilled a bit of water by accident, and it came off very easily too so that’s a bonus.
It’s lacking in the non-slip department. I understand the bottom is designed to be non-slip, and I do utilize the clips that attatched into the seat (the clips just slide out). Despite this is slips often. It’s not a deal breaker, but it was very disappointing. It’s frustrating to re-adjust. The gripping material underneath is not super textured like I thought. The clips not working as indented is also annoying. They don’t provide any gripping it just comes out no matter how hard I push inward.
Also, the color I bought is slightly different from what I received. I know colors vary from photo to life, but it seemed like the color was just off a tad. It was supposed to be a lighter beige according to the photo, but it’s darker. Not a deal-breaker again, but something to consider. It was close enough for me.
Overall still a good purchase, but depending on why you are buying these things may stand out to you.
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Reviewed in the United States on August 15, 2023
★★★★★ 5
Softest ever
Color: Pearl, Size: Front Seat Cushion-1 Pc, Color: Pearl, Size: Front Seat Cushion-1 Pc
I love this cushion.SoSoft, covers entire recliner seat and even gives it a luxurious look. Perfect thickness.
Decent price. I am happy with it.
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Reviewed in the United States on February 6, 2026
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