Locally made tune vs tune from hundred of miles away... GIAC vs Eurodyne

[KevinM.]

I'm looking to tune my car, as well as upgrade the downpipe and possibly intake.
My cousin, who has tuned many cars with varying degrees of success, has been emphasizing the benefits of using a tune that was created locally, in the Los Angeles area, vs a tune made somewhere else, like Canada in the case of Eurodyne.
After quite a bit of research, my heart was set on Eurodyne, so I pulled the trigger and bought their at home flash kit... but this was before I talked to my cousin.
Eurodyne seems to offer more flexibility and even higher power gains, and I like the ability to do it myself at home, but at the same time, that tune was optimized for a car in a very different environment.

What are your guys' thoughts, does where the tune was created really make a difference in how it will perform for me?

[mroberte]

No, meaning you take any car to high elevations, regardless of tune, you'll still have a good amount of power deficit, mainly because environmental factors are what causes the car to do well or not, not so much the tune.

If your down in LA, your temp is pretty temperate and you'll get around the claimed HP numbers. If you were down in hot and humid Texas in summer... Not so much.

I'm on jb1 and I make the claimed numbers... And it was developed in South Africa, different weather, gas, even engine.

Boils down to preference. But I'd trust eurodyne than a local tune because of the history the company had tuning the car. Local might not have as much. My .02 cents.

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[AnthonyA3]

I don't think the location makes differene but I think the type of company makes more of a difference. How much time and money is spent on R&D and what testing equipment is used by the tuning company should be a major factor. I'm sure eurodyne tunes work great but after seeing where they're developed I decided to go unitronic when I hit 40k. Unitronic and Eurodyne are both Canadian but I'd feel more comfortable going with Unitronic after seeing the one man show at Eurodyne. Google Tapp Auto and you'll see where and what he's working with. No offence to any of the eurodyne guys or yourself it's just my opinion.

[EmmanueleDesign]

I'm looking to tune my car, as well as upgrade the downpipe and possibly intake.
My cousin, who has tuned many cars with varying degrees of success, has been emphasizing the benefits of using a tune that was created locally, in the Los Angeles area, vs a tune made somewhere else, like Canada in the case of Eurodyne.
After quite a bit of research, my heart was set on Eurodyne, so I pulled the trigger and bought their at home flash kit... but this was before I talked to my cousin.
Eurodyne seems to offer more flexibility and even higher power gains, and I like the ability to do it myself at home, but at the same time, that tune was optimized for a car in a very different environment.

What are your guys' thoughts, does where the tune was created really make a difference in how it will perform for me?

Besides the altitude, there is some benefit to having a tune that is native for 91 octane. You mention GIAC, who does all their development and tuning on 91 octane. This is certainly beneficial for those of us limited to 91 octane, as compared to a company that tunes for 93 and either dials it back for 91 or just uses the same file regardless of fuel. From our experience, GIAC does seem to perform very well versus other tunes when using 91 octane.

That is one benefit, but of course the degree of support, upgrade path, price and more also play roles in your final decision.