Home > Focus Performance > Focus RS Performance Parts > Focus RS Power Upgrades >

COBB Accessport V3 ECU Flasher - Ford Focus RS B7 Package
COBB Accessport V3 ECU Flasher - Ford Focus RS B7 Package

Alternative Views:

WARNING : California Residents Prop 65 Information
Sale price:$1,999.00
Savings: $500.00

Availability: Usually Ships in 1 to 2 Business Days
Product Code: AP3-FOR-004B7

Calibration (Tuning) Option:

Select vehicle type and octane

Vehicle Type*:
Focus RS 2016
Focus RS 2017
Focus RS 2018

Fuel Octane / Type:

Let us know the modifications to the vehicle

Intercooler type:

Downpipe Type:

Bypass or Blow Off Valve Type:

Choose options for your package

Shift Assist:

Choose options

Hose Color:

Auto Start / Stop:

Engine Idle Speed:

Exhaust Burble:

Choose High Pressure Fuel Pump Type

High Pressure Fuel Pump Tuning:

Choose Wastegate Actuator Type

Wastegate Actuator [Focus ST/RS]:


Holiday Special! 20% Off

Ford Focus RS B7 Package

  • COBB Accessport V3
  • mountune Custom Calibration
  • mountune High Flow Intake
  • mountune Uprated Air Recirculation Valve
  • mountune Intercooler Upgrade
  • mountune Charge Pipe Upgrade (optional colors)
  • mountune Roll Restrictor
  • mountune Badge

The mountune Focus RS B upgrade package includes the very best components to enhance and optimize the performance of your Focus RS including custom ECU calibration to optimize the performance of your car based on your specific use and build specification. mountune performance calibrations are proven to extract the maximum reliable performance and the mountune B series upgrade packages bring together the essential pieces to get you going.

Mountune Optimized Calibration (Tuning) Option - Select when ordering
We rely on the industry’s best tuning/flashing device, the COBB Accessport, to deliver our proven ECU calibrations. The Accessport coupled with mountune’s custom performance calibration, unlocks power hidden within the factory ECU calibration by replacing conservative factory settings with more aggressive calibrations. The COBB Accessport from Mountune USA includes all of the standard COBB OTS (off the shelf) calibrations along with a custom Mountune calibration* built to your specifications based on your modifications, octane, and preferences. The results are impressive gains in torque and horsepower with incredible custom features that can be adjusted to meet your requirements. Our team has spent countless hours on the dyno and track developing performance upgrades that perform in a wide range of applications. With over 30 years of Ford 4 cylinder ECU calibration experience it's no surprise that Mountune USA are partners with Team O'Neil Motorsports, LaRoza Racing, and O.D.D. Racing. And with multiple Rally America Championships won using Mountune USA custom calibrations, our programming team has more Focus RS tuning experience than any other source available to you. Choose from one of the many upgrade packages to enhance your Focus RS.
The Mountune calibrations include 4 slots that are switchable at any time, on the fly, by simply pushing a few buttons. This is a very convenient feature that can be further adjusted in many cases. The default settings for the Focus RS are laid out as such:
Slot 1 - Standard high performance calibration
Slot 2 - Standard high performance calibration with indicated Launch Control and Flat Foot Shifting
Slot 3 - Low boost performance calibration
Slot 4 - Same as Slot 1 with LESS spark (aka panic mode / bad fuel mode)

Optional Max Calibration (Tuning) Option - Select when ordering
Maximize the performance of your Focus RS
For those who require additional support, the Mountune ECU Optimized calibration can be further enhanced with data logging and program revisions to extract the maximum performance from your vehicle at no extra charge. Engine performance is improved by reviewing data logging files along with calibration revisions based on feedback from the end user. The duration of the calibration and file revision period for the chosen fuel type / octane is 45 days from the time the first file is sent to the customer, which is preloaded onto the AP when it ships out. Multiple calibrations can also be requested during this time period. Once the 45 day period has expired the free custom calibration period ends. Future custom calibrations are subject to additional fees depending on the exact nature of the request. Mountune optimized Accessport calibrations are available only to customers who have purchased the Cobb Accessport directly from Mountune.

Custom programming options include, but are not limited to:

  • On-the-Fly MAP (slot) switching
  • Auto Start / Stop disabling
  • Launch Control settings**
  • Flat Foot Shifting settings**
  • Ethanol (E30 & E40) support
  • 100+ Octane support
  • Gear Based Torque Limiting
  • Shift Assist settings
  • Exhaust burble settings
  • Exhaust valve settings
  • Idle Adjustment
  • Rev Limiters
  • Speed Limiters
  • Shift Light settings
  • Advanced Wastegate Adjustments
  • Low Traction / Wet Weather settings

*Please note this free offer for calibration optimization is not available for turbocharger upgrades, engine swaps, or nitrous oxide applications and applies to the original purchaser only. This service is non-transferable and other restrictions may apply. If you have questions about our mountune ECU calibrations please do not hesitate to contact us directly at (714) 424-9400 or at usa@mountune.com for more information.

**Launch control & flat foot shifting can be adjusted anytime via the Accessport. By default launch control is set at 5250 RPM and flat foot shifting is set at 5000 RPM.

Ford Focus RS with mountune ECU calibration, mountune High Flow Induction Kit, mountune Intercooler Upgrade, and mountune Uprated Air Recirculation Valve. Red dyno run has aforementioned parts installed with stock ECU calibration. Blue dyno run has aforementioned parts installed with mountune USA custom calibration.


This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards. Click Here for Emissions compliance information.

Mountune ECU calibration and hard parts reviewed
Mountune powered Team O'Neil Focus RS Mt. Washington Hillclimb
The Smoking Tire takes Mountune equipped Focus RS on the track

Recommended product
NGK Iridium Spark Plug Set LTR71X-II

NGK Iridium Spark Plug Set LTR71X-II

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 12 Write a review »

  0 of 0 people found the following review helpful:
4 of 5 B7 package January 31, 2020
Reviewer: jim Howard from Mansfield, OH United States  
Overall I am satisfied with my purchase.  Everything was very well make and the and all the install instructions were very well understood.  The only problem I had was the sales guy lied to me and said everything was in stock and it wasn't.  It didn't really matter because I put my car away for the winter,  I just hate when a salesman lies just to get the sale.  I would have purchased the b7 package anyways. Other wise I would have given a 5 star review and yes I plain on purchasing more products from you guys and I would still recommend your products

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 B7 parts and tune review January 30, 2020
Reviewer: Beau from Milford, PA United States  
The short and sweet:  Parts fit perfect and look great!
Tuning was very professional!
Power delivery is impressive and addictive!
I felt a little uneasy starting the tuning process without most of the mods installed but I’m not the professional tuner, Randy is.  So I’ve trusted Randy on this and I’m now at the end of my tuning process.  I’m very happy I chose Mountune and Randy to improve upon the already awesome car the RS is.

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 b7 package October 7, 2019
Reviewer: Ryan Kirkwood from west hollywood, CA United States  
The service was incredible, the shop is super rad, my car is beast mode, I love you guys

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 Nice increase in all areas with no difference in m September 20, 2019
Reviewer: Jack O'Neill from Sarasota, FL United States  
pg, so far, so good

Was this review helpful to you?

  0 of 0 people found the following review helpful:
5 of 5 Excellent product! April 12, 2019
Reviewer: Nicholas Reynolds from Greenfield, IN United States  
You can read just about  any  perimeter of the car... and do a lot more!!

Was this review helpful to you?

View All Customer Reviews

Browse for more products in the same category as this item:

Focus Performance > Focus RS Performance Parts > Focus RS Power Upgrades
Focus Performance > Focus RS Performance Parts
Focus Performance > Focus ECU Tuning and Programming
Focus Performance
Special Holiday Promotions