Mountune MP215 or Cobb stage 2

Discussion in 'Fiesta ST Engine Upgrades' started by RobotdevilfieSTa, Nov 23, 2014.

  1. RobotdevilfieSTa

    RobotdevilfieSTa New Member

    Hey guys,

    I'm trying to decide on what to do (was at Navy RTC for 2 months and made me unsure of what I wanted to do). Should I get the MP215 kit or the Cobb stage 2 kit? The price difference isn't huge. My main concern is whether I'm going to miss the warranty from Ford/Mountune. I also don't want to kill the fuel economy. 2nd I'm not very mechanically inclined, so if I go with the Cobb kit...should I take it to a shop, or find a friend that is good and DIY? I'll have about 7-10 days off at Christmas and would like to get this done.

    Thanks for your input.

    Sent from my iPhone using Tapatalk
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  3. Randy@mountune

    Randy@mountune Active Member

    Where are you located?
  4. RobotdevilfieSTa

    RobotdevilfieSTa New Member

    I'm in MS, but the car is in FL an hour south of Daytona.

    Sent from my iPhone using Tapatalk
  5. rcl4668

    rcl4668 Active Member

    I have been extremely happy with the MP215 kit as well as the customer service at Mountune USA.

    That being said, COBB is also a highly-regarded tuner with great products. For me, Mountune's Ford- and motorsports-specific experience combined with the preservation of the Ford warranty tipped me towards the MP215 kit.
  6. Zormecteon

    Zormecteon Active Member

    If warranty is a concern, as it is for me, the MP215. If it's not a concern, the mountune airbox, intercooler and CUSTOM tune would be the way to go. 6 months to get it dialed in exactly to YOUR car.
  7. Dyn085

    Dyn085 Active Member

    6 months for a custom tune? That's insane and hopefully a typo.

    Don't forget that in order to keep your warranty with Mountune parts you have to pay a Ford dealership to do the install.

    A custom tune and IC is all you really need to make good and consistent power in the FiST. Either way, the combinations of choices is pretty much endless. You can't really go wrong between Mountune or Cobb.
  8. Mr UFO

    Mr UFO Active Member

    You don't even need a custom tune for consistent power. The Cobb ots maps are great.
  9. marc89gti

    marc89gti Active Member

    I have the MP215 kit and I'm very impressed by the results. Fuel mileage is just as good as before or in my case mine has improved slightly probably due to my 70/30 hwy/city driving and I still put my right foot into it on a daily basis.
  10. Chuckable

    Chuckable Member

    No doubt Cobb is a great company, but with Mountune you're keeping your warranty. Plus, Mountune just put up a dyno sheet of their MP215 kit, and the numbers aren't too far off what Cobb is producing.
  11. InsTwin

    InsTwin Member

    I'm having a similar debate, but it's more of the Cobb AP v3 with Custom Tune from Randy vs the MP215. I feel like I'd like to keep my warranty intact, but that's the only advantage the MP215 offers, and I would likely upgrade away from the MP215 after the warranty expires.

    Maybe I'll just keep it stock until the warranty is up and then I'll do some tuning (we'll see if this lasts past Black Friday :rotfl:)
    Dyn085 likes this.
  12. Dyn085

    Dyn085 Active Member

    No, the IC is for the consistency. The custom tune is for the maximum safe power. The OTS maps leave quite a bit on the table depending on where you're located.

    Edit- Here's Razorlab's v-dyno with nothing but an Airtec fmic and his own tuning magic on E40-

    Not an apples-to-apples example, just an example.
    Last edited: Nov 24, 2014
  13. timboslice

    timboslice Active Member

    That's a valid concern. I have the mp215 package and I agree with the others that said that it's a great upgrade. However, I'm chomping at the bit for a bit more and there are some great custom tunes out there. Mountune will most likely release an MR upgrade soon so you always go mp215 now and MR after your warranty is up.

    Sent from my iPhone using Tapatalk
  14. Chuckable

    Chuckable Member

    With the Mountune intercooler and their upcoming exhaust, you'll gain a bit more power and torque as well. After that, the only other bolt-on is a downpipe, but you'll lose your warranty at that point.
  15. timboslice

    timboslice Active Member

    No one "gains" any power with an intercooler. An intercooler just allows for consistant charge temps, which allows you to run a more aggressive tune. See above post about Razor's E40 tune.

    You also can never "lose" a warranty but you can be denied coverage for a specific repair that deemed to be caused by a modification.
  16. timboslice

    timboslice Active Member

    Here's Mountune's shiny new dyno for the North American MP215 tune:

    204 HP and 247 lb/ft of torques! Not too bad. Cobb Stage 2 is 211 HP and 272 lb/ft but the stock baselines for each dynos were way off from each other (Cobb rated the stock Fist significantly higher). It's not fair to compare 2 completely separate dynos and there are no independent comparisons for the tunes. But it's still my opinion the MP215 package is most of the way to Stage 2 albeit, without an intercooler.

    MP215 is also on sale right for $1045.00 (but you will still need to account for the dealership gouging you on the install). The Ford install might actually be a plus for you since your not into wrenching your own. So its $1300 installed vs $1700 plus potential installation.
  17. Chuckable

    Chuckable Member

    timboslice, I appreciate your contribution to the thread. I'm not an engineer, but I did speak directly to Mountune and they specifically said you would gain a few horsepower with the intercooler. The way I understand it is that the cooler and denser air that an upgraded intercooler provides will provide a boost in horsepower. It, also being a larger heat sink, will allow for more consistent intake air temps which will prevent power from falling off over extended runs. You are correct, though, it'd be a denied warranty claim at first, and then perhaps the manufacturer not covering your powertrain thereafter.
    Dyn085 likes this.
  18. Dyn085

    Dyn085 Active Member

    An IC will supply a lower charge temp for the ECU to add fuel to. In short, if you start a pull at 70 degrees ambient with the OEM IC, at the top of the pull the ECU will be fueling with roughly a 100 degree or more charge temp. My Cobb IC usually tops around 8-10 degrees higher, so the ECU would be fueling roughly an 80 degree charge temp-and the cooler the charge the more fuel can be added. Also factoring in changes in the pressure drop can result in additional power. Over-simplified, but a generic idea.

    You're spot on with the consistency. It's easy to program power in, but keeping the power available on the OEM IC just isn't possible because it just can't shed the heat quickly enough.
  19. rcl4668

    rcl4668 Active Member

    Thanks for posting timboslice. I assume the Mountune MP215 dyno chart is at the wheels as opposed to an engine dyno?
  20. rcl4668

    rcl4668 Active Member

    Also assuming the dyno run was done using 93 octane gas?
  21. timboslice

    timboslice Active Member

    Yupp, I guess they have a Dynojet chassis dyno at their NA operations.

    Good question. California is a 91 octane state but they might ship in 93 for testing.
    rcl4668 likes this.

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