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Mk6 Fiesta ST MP165 Upgrade - Fully Fitted at mountune HQ

 This upgrade does not affect the base vehicle warranty.

The mountune Performance MP165 upgrade package for the 2005-2008 Fiesta ST is stage 1 of 2 available. This first stage consists of:

  • High-performance exhaust manifold in 4-1 configuration. Sports catalyst and cat-back section
  • Cold Air Intake with a high-performance K&N air filter
  • All gaskets and hardware needed
  • Revised engine management
  • mountune badge

Once upgraded, the Fiesta ST’s power jumps to 165PS at 6500rpm, with torque also seeing an increase to 200Nm at 3,500-5,000rpm.

The upgrade will allow the Fiesta ST to deal with 0-60mph in 7.1 seconds, nearly a full second quicker than the standard ST.

To ensure the performance package is reliable and capable of consistently providing you with the increased performance, mountune has thoroughly tested the performance upgrade package on British B roads along with numerous laps of the famous Nürburgring Nordschleife.

This upgrade can be fitted to any model year of the Ford Fiesta ST and comes with a 12,000-mile/12 month warranty.

Please note: the price shown for this product includes installation* at mountune HQ in Hutton, Essex and is not transferrable to any other Ford dealer or installer.

Please specify your preferred installation date in the 'notes' section when checking-out; our workshop team will then contact you back to confirm this date. If we can't accommodate your preferred choice, the team will discuss with you other available dates, that are still acceptable to you.

*subject to availability. Lead times may vary. Contact us for more information.


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    Paul M.

    The full MP165

    I've had my ST for a long time and it was time for a few upgrades. I already had experience of Mountune parts and knew that the quality is superb so had no problems going for the MP165 upgrade. The fit and finish of the parts is superb and look amazing on the car. The exhaust system now produces a great sound with a deep rumble on startup progressing to fruity rasp once you go past 4000rpm. It is louder, but as long as you are aware, then it shouldn't be a problem. Its a resonated system so on the motorway the sound isn't intrusive and driving around town you'll hardly know its there. The new induction system adds to the noise levels, but as you would expect, its only when you floor it. The big bonus now is that the car will happily rev through to the red line, pulling hard all the way. Prior to the kit being fitted it didn't like revving past 5000rpm, but now, not only does it rev freely, it has strong power all the way through the range. Tick over is smooth and low down torque is all still present and correct so none of the standard cars drive-ability has been lost. I've never been to HQ before as its a long way to go for me, but have to say that the experience was amazing. Everyone was so nice and helpful and the new waiting area is very comfortable. Fred and his workshop team did a superb job and I must thank Fred for his time and patience answering all of my questions, nothing was too much trouble. Thanks Mountune, I'm really happy with my MP165.