On3 turbo kit

I have seriously thinking about making the change from the my vortech v2-si , intercooled setup on my 99 2v , to a on3 turbo kit ... I would really like to go for on3s twin turbo set up .... I have been doing a little research and see that on3 has come a long way but I haven’t seen much reviews with there twin set up ... any Info would be appreciated ... thanks

Any interest it just stepping up to a Ysi headunit?

What would be required for that ? Just slap the new blower on and re tune ?

I have seen an on3 turbo fail in 200 miles. its inexpensive and you get what you pay for

Think I am better off upgrading to a t trim on my vortech then?

geoffmt said:

I have seen an on3 turbo fail in 200 miles. its inexpensive and you get what you pay for

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And I’ve actually owned one that ran 131mph in the 1/4 on only 9 psi.

Guess I got WAY MORE than I paid for. Winning.

You could swap headunit a and retune, make sure ur fuel system was up to par

You can pm me if u like about the Ysi

Anyone with experience on installing the kit and running it first hand??

No offense but I would not buy that YSi from Prddad12. He has been a member since 3/28 of this year and all his posts are trying to sell the YSi.

It could be legit but it seems shady to me.


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Deceptive said:

No offense but I would not buy that YSi from Prddad12. He has been a member since 3/28 of this year and all his posts are trying to sell the YSi.

It could be legit but it seems shady to me.


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Thank you for the reply and concern. Feel free to contact me with any questions

i am trying to install the kit myself.... is this something I will be able to do on my own? i have a decent mechanical skill but have no experience with installing power adders

Marvin9075 said:

i am trying to install the kit myself.... is this something I will be able to do on my own? i have a decent mechanical skill but have no experience with installing power adders

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Everything I have seen with any turbo kit is that some modifications will have to be made to get it to fit. If you have the tools, common sense, ability to follow directions, mechanical ability, beer, and time then I think you will be fine. There is a lot people say they swap out of the On3 kit.

Most have not had luck or longevity from the On3 turbos, BOVs, or the wastegates.

If you can do most of the work yourself but tow the car to a shop to finish it up, I would go CG Fab.


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Deceptive said:

Everything I have seen with any turbo kit is that some modifications will have to be made to get it to fit. If you have the tools, common sense, ability to follow directions, mechanical ability, beer, and time then I think you will be fine. There is a lot people say they swap out of the On3 kit.

Most have not had luck or longevity from the On3 turbos, BOVs, or the wastegates.

If you can do most of the work yourself but tow the car to a shop to finish it up, I would go CG Fab.


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I was planning on doing at least there 67 ball bearing turbo

Marvin9075 said:

I was planning on doing at least there 67 ball bearing turbo

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I’d plan on budgeting for better wastegates and BOVs right from the start at the very least. And do not be surprised if the turbo craps out quickly.

I know people have had luck with their stuff. A buddy made 600ish on a 2V with a single setup.

Others have bought their stuff then turned around and bought CG Fab.


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Prddad12 said:

You can pm me if u like about the Ysi

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You can start a for sale thread if you want to sell it.

I've had my Coyote ON3 twin turbo kit for almost 2 years now. Had fitment issues with the drivers side downpipe, but other than that, dead reliable.
Turbo's have no shaft play, waste gates and BOV still work perfect.

MRSUPRA said:

I've had my Coyote ON3 twin turbo kit for almost 2 years now. Had fitment issues with the drivers side downpipe, but other than that, dead reliable.
Turbo's have no shaft play, waste gates and BOV still work perfect.

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How do you like the twin kit ? I am in a pickle about getting the single or going twins for the little extra

I am not certain but I do not believe you can keep the sway bar with a twin On3 Kit. Something to think about. Hopefully somebody that knows for certain can chime in.


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Marvin9075 said:

How do you like the twin kit ? I am in a pickle about getting the single or going twins for the little extra

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The only thing I don't like about it is how so many hot parts are crammed next to wires on the passenger side, and how you need to relocate the fuse box and ecu. I had to heat wrap everything. But if I installed it again, I would route some of the wires near the ex manifold differently.

Other than that, no compromises. Still have the front sway bar, still have A/C.. Quick spool, Turbos start hitting hard around 3500rpm or earlier.

As I said this is for the Coyote mustang, I don't know anything about the 2v kit.