BMW News, F80 M3, M3, Tuned

Vyper 2.0 | Verde Mantis F80 M3 CP

Some updated pictures. Now sitting on MSS Adjustable Springs and custom Bilstein EDC B6 Dampers.

Original post:

After our Signal Green F80 M3 (Vyper 1.0) met its demise at 2000 miles old we have finally have a suitable replacement.

The car is an individual Verde Mantis (Lamborghini Green) Competition Package with DCT. We have lots of changes planned which will start in the coming weeks. Really happy with the colour its really stunning in person but does need some carbon to contrast with it.

You can also follow the car on Instagram @vyper_m3

Just thought I’d share some pictures whilst its still stock and document the project as we progress.


Last edited by Imran@Evolve; 12-13-2017 at 07:43 PM..

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BMW News, F80 M3, F82, F87, M2, M3, M4

SSR Performance | S55 Keyed CrankHub Fix Full Installation Walkthrough (vid inside!)

Many of you are already very familiar with the spun crank hub (SCH) issue on the S55 engine that comes in the M3 / M4 / M2C. If you happen to be one of the few that isn’t as familiar then fear not, you’re about to learn everything you need to know and more. We won’t be going too in depth on the SCH issue itself (since this forum is already so saturated with this information), but rather we will be focusing on the concept of the keyed crank hub fix and the installation of it.

Although the SCH issue seems to be so prevalent and openly talked about on the forum, it seems there are some questions or gaps to fill in for many when it comes to the process behind implementing / installing a keyed crank hub fix kit on the S55 engine. We went out of our way to create this write up / video demonstration in hopes of changing that!

We hope that this write up / video can help you visualize and understand the concept of the BMW S55 engine keyed crank hub upgrade as well as familiarize you with the core steps and procedures necessary to install it.

Let’s Begin!

The keyed crank hub upgrade is a replacement of your stock crank hub unit with a unit that has two “keys” or “pins” for which 2 holes are drilled into the S55 crankshaft so that upon installation of the crankshaft bolt the new keyed crank hub can be locked into place permanently without a chance of relative rotation to the crankshaft. This allows further insurance against the chance of the crank hub “slipping” or “spinning” and un-syncing the relative angles between the crankshaft and camshafts (this can mean engine failure which will cost upwards of $20,000 to replace or at the very least leave you stranded and un-driveable until the crank hub is replaced and engine is retimed). This SCH failure has been seen on both modified and stock S55 engines. If you are modifying your car, tracking your car, or even driving spiritedly, then upgrading your crank hub is highly recommended.

2015+ BMW F8X M3 / M4 (CS / GTS)
2019+ BMW F87 M2C
And any other variation of BMW models utilizing the S55 engine

Two-Piece Keyed Crank Hub Kit (Maximum PSI used in this example)
OEM Gaskets & Parts Needed
∙ Valve Cover Gasket Set
∙ Front Crank Seal – Crankshaft Seal
∙ Bolt for Timing Chain Sprocket – Intake/Exhaust Camshaft
∙ Cover Seal for Brake Booster Vacuum Pump
∙ Oil Pan Gasket
∙ Engine Oil Pan Bolt Kit (Aluminum)
∙ Coolant / Antifreeze (Blue) (1 Gallon)
∙ Engine Oil – 5W-30 Synthetic (7 Liters)
∙ Oil Filter Kit
∙ Valve Cover R&R (8.2 hours BMW book time)
∙ Oil Pan R&R (8.4 hours BMW book time)
∙ Front Crank Seal R&R (5.6 hours BMW book time)
∙ Drilling Crankshaft (1.5 hours approximated)
∙ Crank Hub R&R w/ proper torquing procedure and retiming engine (1.5 hours approximated)
Total Approximate Labor Hours: 25.2 Hours (BMW specialty tools required)

As already mentioned by a few individuals on this forum, Maximum PSI has discontinued the sales of their two piece keyed crank hub. The main reason for Maximum PSI discontinuing the crank hub was increased production costs and overseas companies copying the design and undercutting Maximum PSI’s prices. It got to the point where Mike, owner of Maximum PSI, decided that profit to effort ratio was no longer valuable enough for them to continue offering the product (just one of the many the difficult decisions business owners are expected to make).

However, the two piece crank hub can still be purchased on SSR Performance’s website. Here is why…

Due to the fact that I have had a close business relationship with Mike over at Maximum PSI since years ago, Mike was kind enough to pass over the information so that we can continue to offer this solution direct from the manufacturing facility that Maximum PSI was working with to produce these.

Mike’s unselfish act has allowed for this solution to still be offered to the end consumer through outlets like us.

With full consent from the owners of Maximum PSI we still offer the same exact solution on our website and it will continue to be available for purchase ONLY while supplies last or until any further notice is given.

This write up / video is for educational / entertainment purposes only. This video is not meant to be a tutorial or instructions on how to replace your S55 engine’s crank hub. This procedure requires specialty tools and S55 engine specific knowledge and therefore should only be performed by a facility that specializes in BMW engines.

Now let’s move onto the fun stuff enjoy



2019 BMW M2 Competition (S55 Engine)

Thanks for watching!

Contact Info: Please feel free to contact us for any questions that you may have!
Phone: (800) 438-2808
Instagram: @SSRperformance (follow us to stay updated!)
590 W Freedom Ave Orange, CA 92865 (open by appointment)

Last edited by SSR Performance; 12-18-2019 at 04:34 PM..

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BMW News, F80 M3, F82, F87, M2, M3, M4, Tuned

NEW RELEASE: Dinan S55 Flash Tuning (F87 M2C & F8x M3/M4)

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Dinan S55 Flash Tuning (F87 M2C & F8x M3/M4)

Part Number(s): D900-S55-S1-W / -HE, D900-S55-S1

  • 2018-2020 BMW F87 M2C
  • 2015-2018 BMW F80 M3
  • 2015-2020 BMW F82 / F83 M4

Product Page(s) / Pricing: Release Date: Available Now! Please note that not all Dinan dealers are participating in the S55 flash release at its initial product launch. Please contact your local authorized dealer or Dinan directly to find out if your dealer is participating.

Description: Dinan has a long and storied past when it comes to engine tuning having introduced our first engine performance chip in the mid 80’s — over 3 decades ago. From those early years with chips, followed by engine software and then to our own external control modules we have become experts in nearly every possible way to extract safe, reliable power from the factory powerplant. While we have long preferred the unheard of control and sophistication capable of being achieved from engine software, over the past 6 years that option was not one afforded to us. That changes now with the re-introduction to flash tuning for Dinan with the S55 engine.

The first of the next generation of Dinan flash tunes the S55 calibrations are held to the same principles of the past; performance, reliability and safety. Dinan performance engine software is so much more than just tuning up the turbo boost after all. It is a fully re-tuned engine management program that maximizes power while keeping all the BMW factory safeguards in place. Protecting your BMW while giving the most performance is the definition of “Performance Without Sacrifice”. Drivetrain and engine components are analyzed for strength then the calibration is tested on the dyno and in the real world for durability and drivability.

This next generation of Dinan flash tunes does differ from the past however in that there are many different options to choose from depending on your needs or desires. Whether you want a warranted tune for 93 pump gas when under the factory warranty, an E85 performance tune for maximum performance when outside of the factory warranty, or something in between, chances are Dinan has an option for you.

Features and Benefits Common to All S55 Performance Engine Software Variants:

  • Full map rescaling for drivability from idle to wide open throttle and everywhere in between
  • Top speed governor removed
  • Retains all BMW factory engine damage safeguards
  • Torque gains drastically improve acceleration
  • No hesitation between shifts
  • Downloads through the OBD2 Port – See note following the various performance charts about possible compatibility limitations
  • Hassle free operation — Install and enjoy

Features, Benefits, Requirements and Power Charts Specific to “Dinan +” S55 Performance Engine Software:

  • More Power: Max gains of 58 HP / 51 lb-ft of torque over stock on the F87 M2C and 32 HP / 42 lb-ft of torque over stock on the F8x M3/M4. Detailed power data can be found in the below charts or at the link provided.
  • Factory matching warranty coverage (4 year / 50,000 mi), including the possibility of consequential damages.
  • Calibrated to work exclusively with pump gas (91 and 93 octane).
  • No required parts, install on a stock car and receive the full power gains

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Features, Benefits, Requirements and Power Charts Specific to “Dinan +HE” S55 Performance Engine Software:

  • More Power: Max gains of 80 HP / 88 lb-ft of torque over stock on the F87 M2C and 68 HP / 80 lb-ft of torque over stock on the F8x M3/M4. Detailed power data can be found in the below charts or at the link provided.
  • Factory matching warranty coverage (4 year / 50,000 mi), including the possibility of consequential damages.
  • Calibrated to work exclusively with pump gas (91 and 93 octane).
  • Requires the Dinan heat exchanger (D780-0001A) to retain warranty coverage and to realize advertised power gains.

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Features, Benefits, Requirements and Power Charts Specific to “Dinan Stage 1” S55 Performance Engine Software:

  • More Power: Max gains up to 146 HP / 155 lb-ft of torque over stock on the F87 M2C and 122 HP / 145 lb-ft of torque over stock on the F8x M3/M4 using E85. Detailed power data for 93 and E85 octanes can be found in the charts below. For performance data on other octanes please visit the appropriate product page on the Dinan website.
  • Dinan Stage 1 performance software includes a limited lifetime warranty against defects in the software and provides free updates and reflashes as they become available. Labor or shipping charges are not included in the warranty and are at the discretion of the place of install.
  • Access to numerous octane calibrations depending on your needs (91, 93, 100, 104, and E85). Switching between mappings would require a reflash at a Dinan authorized dealer.
  • The Dinan Heat Exchanger (D780-0001A) or equivalent is highly recommended when running ANY of the stage 1 maps. Without the heat exchanger installed the vehicle will tend to heat soak / derate under any meaningful load. Advertised gains as a result will not be able to be achieved.

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DME box code and bootloader information must be obtained from the vehicle to determine if a vehicle is flashable in its current state. In some cases we will need to create a file for your vehicle. This process could take several days and multiple dealer visits.

Vehicles previously serviced or updated after June of 2019 may have received a DME bootloader update from BMW. This bootloader version will prevent the Dinan software upgrade from completing. DMEs with the updated bootloader must be removed from the vehicle, and sent to Dinan HQ to have the bootloader backdated. DMEs sent to Dinan for the backdating procedure will not be opened or physically modified in any way. Once the DME is returned to the dealer, they must still be flashed with the Dinan performance software through the OBDII port. If a previously backdated and flashed ECU is updated with the new bootloader, the above process will need to be repeated. Dinan will not pay labor under warranty to remove and reinstall ECUs that were previously backdated, and then updated by BMW or a third party.


I already own a DINANTRONICS Elite kit for the S55 engine, can I switch to the flash?
Yes, you can trade in your existing DINANTRONICS kit and qualify for a warrantied tune (balance of the factory matching 4yr/50 k warranty) upgrade for only $149.95. If you are already out of warranty or simply want more power you can opt to switch to the full stage 1 options (no factory matching warranty) without any associated upgrade fee. Pricing listed is dependent on trade-in of registered, first-hand units. Used, second-hand units do not qualify.

When I purchase a Stage 1 S55 flash do I only have access to one of the octane mappings?
When a stage 1 S55 flash is purchased you obtain licenses for ALL the various octane maps. However, only one map can be loaded on the car at any given time so if you wish to use a different octane then what is initially loaded it would require a trip to your authorized Dinan dealer for a reflash. Labor / install charges to perform this service would be at the discretion of the dealer. We recommend loading the octane mapping that is most commonly used for the vehicle (91, 93 or E85 most likely) and only do a map change for special occurrences such as a track day.

I have the Dinan +/ +HE tune but want more. What are my options?
Dinan+ users can upgrade to the Dinan +HE variant at no charge for more power while retaining the Dinan factory matching warranty provided a Heat Exchanger is purchased and installed as well. For those that want even more power you can opt to switch to the full Stage 1 tunes, taking advantage of more aggressive mapping geared for race fuels, at no additional cost. Switching to these mappings however will immediately cease any factory matching warranty obligation. For all of these scenarios, labor and/or install dealer fees still apply.

I do not live near a Dinan Dealer can I still purchase Performance Software?
At this time Dinan S55 Engine Performance Software must be installed through one of our authorized dealers. Our dealer list is constantly expanding however so check out the dealer locator often at to make sure a new dealer has not begun servicing your area.

Will Dinan parts be covered under my extended/CPO warranty through BMW?
The Dinan warranty (For Dinan+ / +HE variants) matches the new car 4 year / 50,000 mi warranty but does not cover any extended or CPO warranties.

Can I flash my vehicle back to the stock tune?
Yes, you have the ability to flash the vehicle back to stock but the process would need to be completed by a dealer. There is no cost to do so from Dinan but you would potentially be subject to dealer labor rates to perform the service.

What if I am not happy with my Dinan Engine Performance Software purchase? Is there a return window?
All Dinan engine software include a 30-day money back guarantee with no questions asked. If for any reason the owner is dissatisfied with the Dinan engine software, they may return to the place of purchase for a full refund, provided they are within the 30 day period from the time of the initial purchase. Labor or shipping charges are not included in the guarantee and are at the discretion of the place of install.

Last edited by Dinan_Engineering; 11-12-2019 at 11:32 AM..

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