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mountune Fiesta ST MRX Turbocharger Upgrade

Fiesta St Mrx Turbocharger Upgrade - Massive Power & Performance Gains | Mountune

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Sale price:$1,999.00
Savings: $390.00

Availability: Usually Ships in 1 to 2 Business Days
Product Code: 2364-TU-BWA

Description Installation Guide FAQs

mountune Fiesta ST MRX Turbocharger Upgrade Kit


Fiesta ST 2014-2019

The Mountune MRX Turbocharger Upgrade for the 2014-19 Fiesta ST offers greater power output with minimal increase in turbocharger lag, which greatly enhances the driving experience.

Tested and validated over thousands of miles for durability and performance, the Mountune MRX Turbocharger Upgrade includes all required hardware, fittings and hoses. This upgrade does not require any fuel system upgrades. The Fiesta MRX Turbocharger Upgrade has been developed for those that desire a fully engineered upgrade that provides an optimized power band. Unlike other upgrades that deliver just peak or high RPM power, the Mountune MRX Turbocharger offers performance throughout the entire power band ensuring a very responsive and drivable car. The Mountune MRX Turbocharger Upgrade is designed for those that are looking for well balanced yet extremely powerful performance derived from years of developing race winning Ford 4 cylinder turbocharged engines.

The Fiesta ST MRX Turbocharger Upgrade is engineered around a genuine Garrett GT2554R core that features a custom engineered 11-blade billet compressor wheel and matching 3" inlet ant-surge compressor housing for incredible response and power. Developed as a complete system with everything available from one source ensures the performance and quality you’ve come to expect from mountune. Your existing original stock pipe will bolt on but we recommend using a high flow down pipe for maximum performance.

Note: It is highly recommended to use our special locking fastener kit during installation PN 2364-LFK-AA

Note: This product is engineered for a North American specification vehicle for use in North America. We cannot fully support this product outside of the region it was designed for.

Turbocharger Features
  • Dual Row Ball Bearings - lowest friction and fastest spool/response
  • Water Cooled Center Section
  • Double seals on both turbine and compressor end for extreme durability and resistance to any oil seepage
  • Cast Stainless Steel exhaust adapter

Kit Features
  • mountune Stainless Steel V-Band Conversion
  • Preformed coolant hard lines ensure trouble-free installation and performance
  • Optional mountune recirculation (BOV) valve can be installed if you do not already have one.
  • Pre-installed mountune Billet Wastegate Actuator- No additional cost.

What hardware is included
  • 1x mountune MRX Fiesta Turbo Kit , now with Billet Wastegate Actuator included
  • 1x mountune Stainless Steel V-Band Turbo mount
  • 1x mountune Aluminum lower charge pipe
  • 1x mountune / Garrett GT2554R with custom 11-blade compressor wheel
  • 1x mountune Silicone Compressor Inlet Hose Assembly
  • 2x Stainless Steel Hose Clamp – SAE #52
  • 2x Stainless Steel Hose Clamp – SAE #44
  • 1x Turbocharger Oil Inlet Hose Assembly
  • 1x Adapter Fitting, M12x1.5 to -4
  • 1x Crush Washer, M12
  • 1x Adapter Fitting, M14x1.5 to -6
  • 1x Crush Washer, M14
  • 1x Water Pipe #1, Block to Turbo
  • 1x Water Pipe #2, Water Neck to Turbo
  • 1x Tube Adapter, Turbo Oil Drain
  • 1x Gasket, Oil Return Tube
  • 1x mountune 5-Ply Compressor Outlet Silicone Elbow Hose
  • 1 x 65" Vacuum Hose, Silicone 4mm
  • 2x Screw, M8 x 1.25 x 16 Socket Head
  • 2x Nut, M6 x 1.0 Flanged Nylon Locknut
  • 2x Nut, M6 x 1.0 Flanged, Serrated
  • 2x Screw, M6 x 1.0 x 25 Socket Head

What you need
  • Upgraded intercooler such as mountune PN 2364-IC-BA2
  • Cobb Accessport PN AP3-FOR-001 and a competent tuner or calibrator
  • mountune Intake or suitable option PN 2364-CAIS-AA
  • Upgraded High Flow Down Pipe
  • Replacement Blow Off Valve such as our PN 2364-BOV-KIT
As with any upgrade of this type, additional strain is placed upon your engine and drive train. While we have thoroughly tested and validated this upgrade without issues, additional power, cylinder pressure and temperatures may cause engine damage and/or complete failure. It is advised that you upgrade your internal engine components and drive train to support the additional power and performance. For motorsport and track use, it is strongly recommended to upgrade your engine internal components to avoid catastrophic engine failure. This product is for race and track use only.

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.

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Sale price:$549.00



Intercooler Upgrade Black Fiesta St 2014-2019 High Flow Efficient Bolt On Max Cooling | Mountune Locking Fasteners For Mrx Turbo - Fiesta St Turbosmart Kompact Bov Kit, Fiesta St - Ford Fiesta Performance Upgrade | Mountune

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 6 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 The Engineered Difference July 26, 2019
Reviewer: MRX330 from Murica  
Take a GT2554r and let Mountune perform their magic and voila! The MRX is THE turbo for the Fiesta ST.

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  1 of 1 people found the following review helpful:
5 of 5 December 5, 2017
Reviewer: Brent Cully from Buckner, MO United States  

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  2 of 2 people found the following review helpful:
5 of 5 Love Love LOVE IT! August 1, 2017
Reviewer: Sergio Lopes from Hilmar, CA United States  
Install was mostly straight forward. There were no instructions but there working on them. The power curve is so much better. Before was all balls on the bottom end and fell flat on top. Now there's nothing special in first then it comes alive in second and doesn't stop. Had some torque limiting issues at first and some octane problems (my end) but randy has been patient with me (love u) lol. All and all the product and service has been great.

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  2 of 2 people found the following review helpful:
5 of 5 MRX and Randy July 1, 2017
Reviewer: Eddie  
The mrx trully is a great turbo. Pulls when I want it to and saves gas on the lower rpms. And there is still room to grow. (Currently 300hp 288tq  93oct not final revision)

Randy as a tuner is trully a genius. He takes his time to get everything diled in perfectly and takes no shortcuts.

This turbo and expecially the tune is definidently a steal.

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  1 of 1 people found the following review helpful:
5 of 5 Thoroughly impressed May 20, 2017
Reviewer: nathan hodgins from guelph, ON Canada  
Just finishing up the tuning stage of the install. This kit is AMAZING! loving every minute of it. completely different power band than stock and i much prefer the top end power with this. Running 94 octane with this kit and its a rocket!

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