Paul Johnson Custom Tune (S58)

S58 - CustomROM V1 BMW F97 F98 G80 G82 X3M X4M M3 M4 COMPETITION TUNE

Boosted By Richie (BBR Performance) has teamed up with Paul Johnson Tunes (F80Paul) to provide you the best custom tunes on the market!

BM3 Software is required first: purchased here

• After BM3 Purchase, Add to Cart, then go to View Cart and under special instructions, please include your VIN number and email address associated with your BM3 account.

Once you have activated your BM3 license and purchased a custom tune from us you will need to request a custom tune within the BM3 app.

Here's how:

Within the Bootmod3 app you will go to your "My Maps" screen and click the button at the top "Request Custom", then choose  "Paul Johnson Tunes".   In the description/comments list your mods, fuel(tested eth% etc), and goals for the tune.

Once we receive your payment and your BM3 tune request Paul will prepare the base map for you to flash. 

Once the base map is flashed to the vehicle you will datalog the car.  Paul will review the logs and make the necessary revisions to the tune based on the logs.

FEMTO ECU UNLOCKS PRIOR TO: March 17th, 2025 WERE UNLOCKED FOR BM3 CustomROM V1

Custom tuning for S58 is available for pump gas, race gas, full E85 and E85 blends. Results will vary depending on the fuel used and the weigh/traction of your particular S58 model.

NEW CustomROM Features Available Now!  Our first release of the bootmod3 CustomROM is now ready for the S58 engine vehicles. 

Is my S58 DME CustomROM ready?

Can I get this if my DME is currently LOCKED and requires a FEMTO Unlock?

Anti-Lag  

All new CustomROM tunes come with our fixed OTS Rolling Anti-Lag (13-14psi) at no charge.   Fully customizable Anti-Lag is an available option for $200 and includes various tunable settings and safeties such as Anti-Lag Boost, AFR, min Accel Pedal required, Max. Time in Anti-lag mode, Engine Speed, Min and Max Temperature thresholds for Oil, Exhaust Gas Temps and others.  **note all Map Switching slots 1-4 share the same Anti-Lag settings.

For instructions on how to use the Anti-Lag functionality please visit this link

Map Switching 

This is what to expect from Map Switching:  Initially you’ll buy a new CustomROM tune from us,  Paul and his team will work to dial the tune in on the mods and fuel type you choose.  Next,  you’ll have 3 additional optional slots, sold separately,  to have variations of this map. 

Some examples of great uses for map switching are to have street or drag map variation with torque by gear limitations for different tires or road surfaces,   a kill map with higher boost/timing to be used on occasion,  a daily map with reduced boost, valet, or flames map, etc. 

Flex Fuel 

A Flex Fuel tune will start off as a low ethanol pump gas or race gas tune and then dynamically adjust boost, timing, AFR, and fuel supply depending on how much ethanol content is added to the fuel tank.   To allow for Flex Fuel tuning, an Ethanol (alcohol) fuel sensor and an Ethanol Content Analyzer (ECA) CANBus device need to be connected to the vehicle’s PT-CAN. To use Port Injection with a Flex Fuel tune, we recommend a PI controller such as the Motiv Reflex which adjusts the port injection output based on the ethanol content from the sensor.

**S58s require upgraded fuel system components that are sufficient to support the ethanol % that you intend to use with your Flex Fuel tune. (I.E. upgraded HPFP, LPFP, Port Injection, and or Methanol Injection). 

To read about these new CustomROM features available on the S58 engine refer to this document 

Some of the available map features:

• Top speed limiter removal
• Exhaust flap adjustments
• Cold start (cat heating on startup) removal for quieter cold start
• Cat efficiency check (CEL) removal for de-cat downpipes (for off-road use)
• Maps for upgraded turbos
• E85, Ethanol blends, race gas and meth injection tuning
• Custom Pedal Mapping
• Linear torque curve maps
• Traction management by rpm/gear
• Road course, 1/4mi Drag, and 1/2mi specific tuning. 
• Backend Flash maps for use with piggybacks
• Custom burbles with greater aggression/adjustment range than OTS maps.  
• Gunshots/flames tuning (requires full decat)
• Customized i-Drive sport gauges