OTT tune now available for the LC250

perigree · Jul 30, 2025

Wish the OTT guys were active here. Would be interested to hear what they needed to change for the full time 4wd setup in the LC250. I believe that's what took them longer than with the tacoma (according to some tacoma forum thread). E.g. Did they have to reduce output in some cases to protect the transfer case etc.

Edit: thread for reference

In Depth Review Videos + Official Release Info: Overland Tailor Tuning OTT Tune for 4th Gen Tacoma

I appreciate you taking the time to ask! We are working on a potential handheld/flash-by-phone solution, which would allow users to flash their...

www.tacomaworld.com

RUN-8 · Jul 30, 2025

jbtaco2002 said:
so how about that OTT tune folks?

Looks interesting and provides nice power gains at useful engine speeds.

RUN-8 · Jul 30, 2025

perigree said:
Wish the OTT guys were active here. Would be interested to hear what they needed to change for the full time 4wd setup in the LC250. I believe that's what took them longer than with the tacoma (according to some tacoma forum thread). E.g. Did they have to reduce output in some cases to protect the transfer case etc.

If I had to speculate it’s not a driveline durability issue, probably not even a big difference due to the full time 4 wheel drive at least in engine tuning.

It’s just that each vehicle model has its own ECU programming, and OTT focused on the most common model first so the ROI is larger and realized more quickly. If 85% of truck T24A-FTS engines are bound for Tacoma engine bays, the smart money is to offer products, tuning, etc for those first.

Nor Cal Cruiser · Jul 30, 2025

RUN-8 said:
He’s smarter than everyone else. Just ask him.

Everyone else is in the Dunning Kruger Effect zone, which is convenient for Seratti since he’s evidently (based on what we can see) a firm believer in trying to lump anyone who holds opposing views as illogical morons barely removed from animals.

This is the low hanging fruit for people who are intellectually lazy, or insecure in their ability to defend their own view points. Just wave the “Dunning Kruger Effect” magic wand and you can instantly win any argument! Which is really pretty ironic that the Dunning Kruger enthusiasts of the world might actually be those who are most accurately described by it.

Since when did this thread become about my ex wife?

RUN-8 · Jul 30, 2025

Nor Cal Cruiser said:
Since when did this thread become about my ex wife?

Well if you would have just accepted that literally EVERYTHING was and is about your ex wife, you’d still be married.

It’s her universe the rest of us just live in it. At least according to her.

TakaraLC · Jul 30, 2025

RUN-8 said:
If I had to speculate it’s not a driveline durability issue, probably not even a big difference due to the full time 4 wheel drive at least in engine tuning.

It’s just that each vehicle model has its own ECU programming, and OTT focused on the most common model first so the ROI is larger and realized more quickly. If 85% of truck T24A-FTS engines are bound for Tacoma engine bays, the smart money is to offer products, tuning, etc for those first.

Yeah they said it is related to the differences in engine control.

RUN-8 · Jul 30, 2025

Interesting, well in that case I hope the improvements are even better.

basicxj · Jul 30, 2025

RUN-8 said:
Well if you would have just accepted that literally EVERYTHING was and is about your ex wife, you’d still be married.

It’s her universe the rest of us just live in it. At least according to her.

I sense some grains of truth discretely embedded in this post

AlexGates · Jul 31, 2025

perigree said:
Wish the OTT guys were active here. Would be interested to hear what they needed to change for the full time 4wd setup in the LC250. I believe that's what took them longer than with the tacoma (according to some tacoma forum thread). E.g. Did they have to reduce output in some cases to protect the transfer case etc.

Edit: thread for reference

In Depth Review Videos + Official Release Info: Overland Tailor Tuning OTT Tune for 4th Gen Tacoma

I appreciate you taking the time to ask! We are working on a potential handheld/flash-by-phone solution, which would allow users to flash their...

www.tacomaworld.com

I mentioned that on a FB group and got $#@% from two guys who are likely tune installers. Mainly because people in the group were using the Taco YT OTT video w/ dyno results as what the outcome would be. I'll wait for someone to dyno a LC with the tune. I get the impression that there are levels of the OTT tune, from mild, to mid, etc.

I'm honestly happy with my LC the way it is for what I use it for... and my other vehicle is a solid 2.5sec 0-60 faster, so... But, I can understand some people wanting a tune. The impressive thing out of OTT isn't the hybrid tune, it's the non-hybrid Taco tune, that is a good improvement.

Apparently they (OTT) can also tune your (or some, dunno if it'll work on the LC) your electrical system to be able to use an AGM battery, that is worth considering.

RBB · Aug 2, 2025

Per OTT guys. Adds about 28 ft lbs of torque and 40 whp. Along with
Benefits:

Increased HP & TQ
Improved Throttle Response
Refined Shift Logic
Reduced Gear Hunting
Linear Power-band and more!

RideWithYanu · Aug 2, 2025

RBB said:
Per OTT guys. Adds about 28 ft lbs of torque and 40 whp. Along with
Benefits:

Increased HP & TQ

Improved Throttle Response

Refined Shift Logic

Reduced Gear Hunting

Linear Power-band and more!

I’d be interested for the reduced gear hunting - but I’d be even more interested if Toyota would just issue a release.

RobLS · Aug 2, 2025

misfits9095 said:
I wish they made a tune that could run regular fuel instead of premium. Filling this thing up is a painful experience lol.

Awhile back when I was trying to get the MTS button in a 1958 model I was talking to a local tuner who was testing out the OTT tune (who is now going to be an installer of it).
I was originally asking if MTS could be added in software and he unfortunately let me know it’s not possible at this time.

I then asked about the tune in general. He personally owns an LC250. But getting to the point of fuel, you should be able to use 87. Tunes can be set to run a specific octane only, but with modern sensors tuners will typically have it actively adjust so you can pop in regular to premium without worrying. This is what the tuner I was talking with was doing. Performance will adjust accordingly.

And for those criticizing the question, chill out. Some states the difference is not “just .50”, it’s quite a bit more. But also if you are hitting some remote areas, regular is the only option.
From my own personal experience I’ve only had the option of regular.

fftfk · Aug 2, 2025

I had the OTT tune on my 3rd gen Tacoma. It definitely improved the vehicle with the biggest improvement being the shifting logic. Toyota really did some weird thing with that transmission.

That being said, performance wise this engine and transmission seems
Pretty good to me. Sure - more HP and Torque are always more better…this isn’t a sports car nor does it have any obvious issues (like the Tacoma shift mapping did)..

misfits9095 · Monday at 9:05 PM

RUN-8 said:
If you can’t afford the $.50/gallon difference in price between 91 octane and 87 octane, you have bought way too much vehicle.

I can afford the difference. It would be good to pay less for gas given the same engine and transmission are in the 4Runner and it gets the same HP and torque on regular.

My prior truck has a diesel motor and you could switch tunes on the fly to go from eco to performance for the reason I mentioned, economy. I’m not sure why you got so butt hurt.

Sugarloafer80 · Wednesday at 9:04 AM

Some irony in this thread. The #1 complaint about LC250 is small gas tank, mileage etc....A tune will only exacerbate the issue.....for some

RBB · Wednesday at 10:56 AM

Sugarloafer80 said:
Some irony in this thread. The #1 complaint about LC250 is small gas tank, mileage etc....A tune will only exacerbate the issue.....for some

Are we sure ?

Sugarloafer80 · Wednesday at 12:13 PM

If it is turning up the boost, and the way folks are getting mileage is to stay off the boost AMAP, I can pretty confidently say, mileage will suffer. Don't think Toyota would leave much on the table.....in 2025. 465ft-lbs of tQ is a pretty stout number already. Increasing HP typically happens at higher rpms...on boost in a turbo. I will believe otherwise when I see it. 40yrs experience with this stuff

RideWithYanu · Wednesday at 12:44 PM

Sugarloafer80 said:
If it is turning up the boost, and the way folks are getting mileage is to stay off the boost AMAP, I can pretty confidently say, mileage will suffer. Don't think Toyota would leave much on the table.....in 2025. 465ft-lbs of tQ is a pretty stout number already. Increasing HP typically happens at higher rpms...on boost in a turbo. I will believe otherwise when I see it. 40yrs experience with this stuff

How has your experience with the 250 been so far?

munkeeboi · Thursday at 9:52 AM

not a LC250, But a lot of us on the GX550 Forum with VFTuner have gotten better mileage with their tune.

Edit - Here's a breakdown on the 3 tunes available for the GX through VFTuner

87 octane = similar to, or a bit more power than stock, saves a bit of money at the pump. MPG differences have not been tested, I wouldn't expect noticeable MPG differences.
91 octane = significantly more power than stock, similar to stock like MPG (if you drive it normally), slightly more MPG at low load / cruising / out of boost
93 octane = ridiculously more power than stock (on our latest test we see 75 WHEEL horsepower gain at 5500 RPM, and just a fat curve everywhere from about 2400 rpm). Noticeably better MPG than stock (out of boost) due to the ability to run more ignition.