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Discussion Starter · #1 ·
Posted this up on some of the other forums and would like your input as well.

I've got the MP215 kit installed and the next mod will likely be an intercooler. Many of you on this forum have a great wealth of experience with different types and brand intercoolers. I'm soliciting your opinion on the Mountune intercooler: mountune Fiesta ST Intercooler Upgrade high flow efficient bolt on maximum cooling

There have been some great comparison threads, but this is focused on the Mountune unit as it's the only warranty-friendly intercooler. Too small? Too expensive? Poor design? Compromised to allow enough airflow to the radiator? Best of what's available? Etc. I'd like to hear your thoughts and experiences.

I daily drive my car and will be autocrossing and doing a track day every couple of months in South Florida, which means high heat and humidity. Thanks in advance!
 

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If your worried about warranty then go with mountune and have the dealer install its your only option.
 

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Mountune uses a tube and fin design which is lighter weight but not as durable as the bar and plate there is a thread on it. It is three spots below this one
 

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I'm going with mountune, getting it installed on the 22nd, along with other mountune goodies. I believe the core dimensions of the Mountune IC are about the same as stock, only thicker. I dont plan on tracking the car, only dealing with the occasional heatwave.
 

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Discussion Starter · #7 ·
Randy, I've looked at comparison pics and the Mountune seems to be on the small end of the spectrum. But, as with most things, I know that it's not that simple. And I understand that the Mountune dimensions are meant to preserve the factory cooling pack functionality. Is that true?
 

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Discussion Starter · #9 · (Edited)
Randy, I used a poor word choice in saying the Mountune unit is "small." It is the smallest of the readily available aftermarket intercoolers, but still larger than stock by a fair margin. I stole this from Razorlab on another FiST forum for all those who are interested in comparing dimensions:

Stock FiST IC
Core Dimensions:
27.5" x 5.25" x 2"
Core Volume:
288.75 in

Mishimoto J-Line IC
Core Dimensions:
22" x 7.2" x 3.75"
Core Volume:
594 in
69.1589% difference over OEM FiST IC
18.1818% difference over Cobb IC

Cobb IC
Core Dimensions:
27.5" x 6" x 3"
Core Volume:
495 in
52.6316% difference over OEM FiST IC
5.6075% difference over ATP IC

ATP IC
Core Dimensions:
24" x 6.5" x 3"
Core Volume:
468 in
47.3736% difference over OEM FiST IC
1.2903% difference over AIRTEC IC

AIRTEC IC
Core Dimensions:
28" x 6" x 2.75"
Core Volume:
462 in
46.1538% difference over OEM FiST IC
9.4122% difference over Mountune IC

Mountune IC
Core Dimensions:
29.25" x 5.75" x 2.5"
Core Volume:
420.47 in
37.145% difference over OEM FiST IC
3.4401% difference over OEM FoST IC
 

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What I can tell you is that our FMIC works. And works extremely well. The Team O'Neil Fiesta ST that was piloted by ACP and calibrated by yours truly, cleaned up nicely last season. The same FMIC we sell to the public was used on the 2014 Championship winning Fiesta ST. We even started beating many of the AWD cars at the end of the 2014 Rally America season.

Land vehicle World rally championship Rallying Vehicle Motor vehicle
 

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When I do my income taxes in a month or so with the money I get back I'm going to buy the full Mountune kit with charge pipe and hoses. Real good value for the price Mountune is selling it for. And with Randy stating that the same intercooler that they sell was put into the Team O'Neil Fiesta ST makes me even more confident in the ability of this intercooler to do an awesome job.
 
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Racing (and WINNING) is usually a good indication of quality of products.I wouldn't use Mobile 1 until I saw it being used in F1.
 

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