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Too big. Match up my mass flow numbers and pressure ratios from here against any compressor maps you wish. Also remember to consider the compressor RPM drop across gear changes- that'll help in understanding transient response. You cannot do better than the 9174 on this engine, especially...

@jwuonog Believe me, I researched this exhaustively. The only G series dual would be the G25-550- which aren't a great match, would more than double the price (those are NOT cheap), and not only would you have to fab the intake pipes, downpipes, and charge pipes, not to mention the need to deal...

You're missing the point, there is no 3-1 collector. The turbos are integrated into the head with the turbines bolted in place. There are no "headers" @UNBROKEN is right, only two pipes need to be fabricated to the single turbine entry- pretty much taking the place of the existing cold side...

I hold a representative for a major company to a higher standard than a new member asking about the best floor mats. That being said, y'all are right, my comment was too harsh. For that I apologize.

@bosephbarking , good job, and actually, you forced my hand. However...(I think I'm reading your post correctly) a higher turbine A/R will "bring in power" later rather than sooner. The EFR turbos are pretty much state of the art at the time I'm writing this, not only because of the bearings...

I'm a fan of your products...however, based on your grammar, sentence structure, and that "review", you should probably let someone else in the company communicate to those in the enthusiast community. Stick to twitter.

No turbo option is going to make much of a difference if you're fuel/octane limited. There are definitely gains to be made via a larger A/R or wheel on the turbine side, but unless you can run a higher pressure ratio on the compressor side, the only thing that a larger compressor might supply...

If you're going to be running a 91 tune in PHX, neither the cats nor the intake will make much difference. I also have stuck by saying it's going to save labor to replace the cats when one replaces turbos. None of these mods are going to increase your gas mileage.

Others (especially vendors) might not agree, but I wouldn't bother with aftermarket cats on the stock turbos. If you have the extra $600 to spend, I'd spend it on the aFe intake instead. At 91 octane and a tune, it's not going to make any big difference, but it looks great and if the...

That's what I would do. The bang for the buck for a good tune can't be beat. And in Phoenix (used to live in Scottsdale and Tucson), the intercooler is a must.

You don't need it.

It's very hard to say. I've seen a few dyno results, but they are apples to oranges since the mod list and fueling is very different. A completely stock ST on 93 can make around 440 WHP. I've seen the modded turbos make as much as 560 WHP on 104 octane gasoline with a LOT of other mods. I...

Yeah, right.

I'm just pointing out you can call a local parts department, order the part, and pick it up when it comes in if they don't have it in stock (which they probably don't). But, if you're OCD, by all means, you can pay a lot more.

For something like this, the shipping is almost as much as the part!

Ford Parts Department?

@M1nd64m3, while I think you may not have targeted the right vacuum source, for you and others on this thread, here is some info on the "missing" BOVs for Explorer STs. https://www.explorerst.org/threads/2021-st-bov.2576/post-33735 https://www.explorerst.org/threads/2021-st-bov.2576/post-41797

I have a Star White as well, and I like the blue. Unfortunately, the kids call mine the "Space Ghost", so I have to keep some red!

Do a search for FENG delete on this site. All the info you need.

If you already have the other Steeda components, you should consider their springs as well.