Flowmaster Delta Boost module - 4 psi boost gain for $239

It appears to run exclusively by piggybacking off the boost sensor and just cranking up the boost, meaning it won't make any corrections for temperature, AFR, or any of the other things an accessport or protune would take into account for the sake of engine health.

I'd stay away.

I know, I know, yet another inline boost module but for those of us who don't want to drop $500 on an AP when we don't plan on any other performance mods, it seems like a legit way to add a little boost... It runs inline and uses a smartphone app to control and you get Valet, Stock, Sport (3psi boost) and Max (4psi boost). And has a built in boost gauge. YouTube video shows it seems to work well. Claims "Provides performance gains up to 18hp and 25 ft/lbs of torque for Fiesta STs."

Any REAL experience with this device? I'm not looking for people who never had one to say "all those things suck" unless you can make a detailed argument on why this isn't a decent option, if not the best, of the inline boost module products for those of us who just want a little boost in power. I'm definitely open minded to alternatives.

Thanks!

Edit: Oh, the only catch is that it's only for the '17+ FiST.

Get it, test it, report back.

Either it works and you saved $250 or it blows your engine on a cold day, costing you thousands...
But hey... what does Cobb and these other tuners know... they probably enjoy wasting their time on R&D on the accessport.

Use your brain... FFS... just read the post by Xan...

Cheap to buy usually means expensive in the future when something breaks! Shoot, I don't even like OTS tunes for Accessports no matter how close they seem to match my mod list.

I agree with XanRules. Reminds me of a Split Second Turbo Tuner. Its just offsetting the boost reference signal to the ECU. Stuff like that is obsolete, about 10 years out of date. Tuning with devices like the AP has evolved significantly since then and the extra $200 is cheap insurance for the expanded functionality that it provides.

So hey, what does Flowmaster have to lose by blowing everyone's engine? They make them for a lot of turbo cars, MY BRAIN tells me that they aren't claiming a whole lot of major gains, so why couldn't a simple device keep things in the safe range?

And next time just use YOUR brain and just click along to something else if you are just going to be a dick, especially when I specifically mentioned what I was looking for, "FFS"

It appears to run exclusively by piggybacking off the boost sensor and just cranking up the boost, meaning it won't make any corrections for temperature, AFR, or any of the other things an accessport or protune would take into account for the sake of engine health.

I'd stay away.

Flowmaster doesn't worry about the health of your engine long term... I am being a dick because you fail to see the successes of other's using a superior tuning option.

Don't confuse my tone for being a dick, I am telling you like it is and not spoon feeding you information.
I and all the experienced tuner car owners know more than you just from reading your post.

Lose the ego and you'll learn a lot.


You also want the ability to monitor the tune... which that does not.

Here’s an argument:

A protune could make several adjustments within 20 parameters just to run 4 more psi safely.

So, if you think a little module can do the same job, go for it.

This is very true! I was just thinking that the stock ECU would be able to keep things safe at only a 4 psi boost, but you're absolutely right... But the counter argument is that they can tell your ECU has been flashed at some point even if you reset to default with an AP, with this it doesn't leave any trace at all... Maybe good for a "during warranty period" device?

You are far more likely to use that warranty if you crank boost up by 4psi without making any additional corrections. It's simply not worth the risk to save $200 or so.

This is very true! I was just thinking that the stock ECU would be able to keep things safe at only a 4 psi boost, but you're absolutely right... But the counter argument is that they can tell your ECU has been flashed at some point even if you reset to default with an AP, with this it doesn't leave any trace at all... Maybe good for a "during warranty period" device?

Lose the ego? WTF are you talking about? You were the one with the ego in YOUR reply, a-hole... I'm not going to converse with someone that's a delusional narcissist, thanks anyway. There are plenty of other people replying without being a dick.

Sorry for hurting your feelings by being an asshole but you need the ability to tune the car and adding boost doesn't "tune" a car.

I googled the stupid flow master module and found on other forums they recommend tuning the car afterwards, which leads back to the Cobb AP.

To refute... If you experience a problem due to this module and have to take it to the dealer, it will have thrown a code. The technicians can view “freeze frame” data, which are PID data associated with a code. In other words, if it runs lean, and pops a ringland, they’ll see that the car was making much more boost than it should. Also of note, not all codes trigger a CEL. These are pending faults: a fault exists, but the ECU is basically waiting for it to clear or keep occurring before displaying a CEL.

So, either way it goes, a modification is a modification. They can find out if they want to dig.

This was posted not to long ago and is a good resource. https://ford.oemdtc.com/GSB/G0000128.pdf