[RevinRed302]

I'm considering starting to mod my car. Im looking into the Cobb stages primarily, because they seem to have a pretty good reputation. My '15 FiST is, and will continue to be my DD though, so I don't want to start going parts crazy before I make sure that I won't turn my car into a money pit. My biggest fear is that I will get to Cobb stage 2, and 15,000 miles later something will break and end up costing me a bunch of money/ down time. How reliable have your cars been since tuning/modding? Does any one daily their modded FiST without any drama whatsoever? How many miles do you have on your modded cars?

 

[RevinRed302]

I'm considering starting to mod my car. Im looking into the Cobb stages primarily, because they seem to have a pretty good reputation. My '15 FiST is, and will continue to be my DD though, so I don't want to start going parts crazy before I make sure that I won't turn my car into a money pit. My biggest fear is that I will get to Cobb stage 2, and 15,000 miles later something will break and end up costing me a bunch of money/ down time. How reliable have your cars been since tuning/modding? Does any one daily their modded FiST without any drama whatsoever? How many miles do you have on your modded cars?

 

[Cesso]

Now my car is stock and has less than 2,000 miles on it, so I can't speak on this matter personally, however these cars have exhibited none of the mechanical weaknesses that the Focus ST has (blowing ringlands). On the forums where problems are more apparent than in real life, motor trouble is very rare for modded Fiesta STs. The only failures that seem to occur are mostly limited to a few faulty transmissions from a few months of production, and one member broke an axle from launching hard at the dragstrip with far more than the stock power level. The Cobb stages are proven to work and should not cause any problems for you, their products are well thought out and thoroughly tested.

 

[Chuckable]

I'm sure you've already considered this, but I'll just state it again. Mountune is the only way to go to keep your warranty. That's not exactly the question you're asking, but it's related because if by chance the modding makes the car unreliable then at least you have a warranty to remedy the problem. With that said, I have the Mountune MP215, FMIC and charge pipes for a few thousand miles and no problems. I'm sure it's designed to operate within factory limits for warranty preservation sake. As to Cobb, it's an excellent company no doubt with great products. You'll probably never have any problems with them. One last thing, though, if you're going to judiciously use launch control and flat foot shifting as you get with the Cobb AP, I can't imagine your tranny is going to last too long!

 

[Mr UFO]

14000 mi
3 track days and 3 autox on cobb stage 1.
2 track days and 1 autox on cobb stage 2.
Only smiles so far!

 

[RevinRed302]

Those are the stories I want to hear Mr UFO!

 

[Mr UFO]

I just switched to an etune Mountune map and I must say it is fantastic. Much smoother than the Cobb ots maps.
If you're concerned about the warranty go with the Mountune 215 kit!

 

[ISO100]

I'm getting etuned by Randy soon.

 

[RodMoe]

I do think COBB has two type of Launch control's one with and one without boost so I am not sure why you would stress your tranny anymore than any other type of driving ??

 

[Chuckable]

RodMoe, that may well be true as I don't actively follow Cobb's products now that I've chosen to go with Mountune. I imagine that any clutch drop on launch control, whether on boost or not, and whether tuned or not, is going to stress the tranny (and clutch) more than everyday driving. Certainly a no boost launch control clutch drop wouldn't be as stressful as a high boost drop. Don't want to get too far off topic, though.

 

[RodMoe]

OK well I guess to me launch control is not just reving the motor and sidestepping the clutch any bozo can do that.
But as ya said on topic if you are in the least worried about warranty go Mountune and enjoy what they have.. Anything else is a crap shoot whether it is covered or not..

 

[BostonDriver]

Both Cobb and mountune have quality parts. I think mountunes are the best you can get in terms of quality and engineering given their experience with the FiST. that's why I've gone full mountune. Their parts fit like factory, require zero irreversible modding of other components on install and they're so confident they've gone the extra mile to get them warranty friendly. Stage 2 isn't really much in terms of parts either... Intake, intercooler and a tune. My car is a daily driver and I haven't had one issue with my stage 2 mountune parts for the 7000 miles on them. I've got the mountune full intercooler pipe kit and cat waiting to be installed now. Just waiting for the catback so I can do it all at once.

 

[moshaholic2]

Cobb stage one was installed by 500 miles. De-cat DP, mountune intake and hoses, FS Werks exhaust and custom Mountune tune by 3000 miles. 12500 miles now, no isuues.

 

[koozy]

Mountune uses Cobbs Accessport. Mountune needs Cobb. Cobb doesn't need Mountune. Mountune should create their own handheld tuner and be self reliant against it's competitors.

 

[golfhack]

Cobb stage 1 at around 1500 miles, downpipe and a Randy bespoke tune around 15k, FMIC and stage 3 at 23k. Just broke 29k and everything is good.

 

[BRGT350]

Mountune and Cobb both make some of the highest quality and best engineered products, however, proper care, quality fuel, and driving habits will play largely to how well a modified car will last (true of a stock one as well). The biggest killer to modified Fiesta and Focus ST's seems to be from people running a very aggressive tune without the required bolt-on parts. For example, running a stage 2 tune on a stock intercooler.

 

[horrorbiz]

My FiST is my daily driver. I'm running Cobb parts, stage 2.5 with a protune. I haven't had any issues and the car runs great. I also ran Cobb parts and a tune on my old WRX for 60k miles without any issues.

 

[Rallytaff]

I'm running Stage 3 with a bigger intercooler and 91 octane, set up by Raffi at FSWerks. Have 56,000 miles and no problems at all. Dyno'd at 190 at the wheels with 271lbs/ft of torque. More than enough for a lot of fun and reliability! To me, wanting higher hp figures is just for show and a waste of money.

 

[Rallytaff]

61,000 miles with all the parts fitted at FSWerks and still runs as good as the first day I got it! Raffi and Vik KNOW their stuff! Thank you gentlemen!

 

[XR650R]

No mention of mods, but this guy claims 100,000 with no issues. http://www.fiestast.net/forum/threads/16674-100-000-Miles