The Tuned 11th gen Experience & Reliability Thread (for all models)

[gtman]

Update #1
Vehicle: 2023 BB Type R

Total tuned time: ~2 months

Tuned miles driven: 2500-3000 10k on odometer

Tuning device(s) used: Hondata

Tunes used: Hondata base map, Phearable stage 2(as 8/18/25) approx 250 miles on Phearable

Fuel used: 93 octane(always sams club, unless not at home)

Additional related mods: N/A at the moment
PRL RMM waiting to go in when I feel like doing it
Problems/issues: None

Driving normally pretty easy. I nearly redline everytime I drive. Power falls off after 6600 so what’s the point? Also always hit a least 100 if possible every drive. I’ll do that stuff at like 50-60% throttle. I’ll only go WOT if I’m out in Mexico for some racing. Been trying to live in the above 4 k rpm range just to be more comfortable

Tuning notes : tuning is the best bang for your buck you can do. Phearable is so much better than the bad al. I like the throttle padding/input of the tune. 3rd gear absolutely rips. I was NOT expecting that.

I've added 5000 miles since this post, and the primary comment I'll make about the 93 octane Hondata base map tune is that it greatly improves mileage. And also, again, removing rev hang is a significant quality of life improvement. It's still running pretty much new, minus a few knicks in the paint, and the tires certainly aren't fresh, but the engine still purrs.

Always great to see updates since we're trying to document long term 11th gen tuned reliability in the thread. Thanks.

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[danielbl]

Vehicle: 2023 Civic Si

Total tuned time: 1 day

Tuned miles driven: 10

Tuning device(s) used: Hondata FlashPro

Tunes used: Hondata 240 CARB

Fuel used: CA 91 (usually Costco but can vary)

Additional related mods: bone stock

Problems/issues: None

Driving style: Normal driving with an occasional burst of speed here and there

Tuning experience notes: After adding the Hondata +6 CARB tune to my wife's '21 EX HB CVT, I figured I should Hondata-up my own! The tune gives the car an OEM+ feel, meaning it should've been like this off the dealer lot. The extra torque gives that nice, lowdown shove similar to the feeling in my old '15 Fiesta ST, so it creates a more fun driving experience. I will give updates when more meaningful miles are added, of course, but I wanted to get this added to gtman's thread.

Added another 280 miles on the Hondata 240 CARB tune, so that’s 300 total miles. Not much compared to others mileage-wise but still good thus far.

The extra punch is appreciated and is what the Si should’ve felt like in the first place. The only changes I made before uploading the tune were turning off flatfoot shifting (seems weird to me ) and turning off the extra torque in Sport.

The tune wasn’t done for MPG, but as with my wife’s tune on her 10G EX, MPG is not negatively affected. Drove 5 hours to my dad’s house, and we averaged 41.0 (car said 43.7). Previous best was 40.9, which was an outlier since the historical average for this trip is 39. Nice improvement!

On an aside, I added a PRL intake hose since I got it used for half the price of new. Difference in power or throttle? Meh. But it did add a subtle intake growl that my wife even noticed.

 

[danielbl]

Added another 280 miles on the Hondata 240 CARB tune, so that’s 300 total miles. Not much compared to others mileage-wise but still good thus far.

The extra punch is appreciated and is what the Si should’ve felt like in the first place. The only changes I made before uploading the tune were turning off flatfoot shifting (seems weird to me ) and turning off the extra torque in Sport.

The tune wasn’t done for MPG, but as with my wife’s tune on her 10G EX, MPG is not negatively affected. Drove 5 hours to my dad’s house, and we averaged 41.0 (car said 43.7). Previous best was 40.9, which was an outlier since the historical average for this trip is 39. Nice improvement!

On an aside, I added a PRL intake hose since I got it used for half the price of new. Difference in power or throttle? Meh. But it did add a subtle intake growl that my wife even noticed.

I know this 11G tuning thread is not active but giving an update for those researching different tunes. Added 780 more miles on the Hondata 240 CARB tune. That’s 1,080 miles on this tune. (I only drive 5k miles/year.) All good so far. Random: best tuned hand-calculated MPG of 41.0 on 91 octane and 39.5 on 89 octane. Both were achieved while my wife and I slogged 5 hours on the highway to my dad’s house.

I recently compared the torque targets of 240 CARB vs. 250 CARB. With Hondata Mode enabled, they’re the same until you go into Sport mode. That’s when there’s a differentiation. I initially uploaded the tune with Hondata Mode disabled. I just recently reuploaded the 240 CARB tune with Hondata Mode enabled, and there’s a bit more punch in Sport vs. Normal.

I asked Hondata if the full “240 CARB power” is only available with Hondata Mode enabled (meaning I’ll have to drive in Sport for that), or is there still a bit more power than stock even if it’s disabled. Or is it basically a stock tune when disabled? Because when my wife and I drove with it disabled, the engine definitely felt punchier than stock. Awaiting their answer unless someone here knows. My searching didn’t yield results unless my search skills suck, which is plausible.

 

[gtman]

Appreciate the update.

It's crazy how inactive this thread is.

 

[Johaw]

(UPDATE 3)
Vehicle: 2023 Civic SI

Total tuned time: 26 months

Tuned miles driven: 17,000

Tuning device(s) used: KTuner V2

Tunes used: DROBIMW Gin 93+ basemap

Fuel used: 93 octane

Additional related mods: 27won CAI, 27won air intake snorkel, 27won FMIC Kit , PRL x PTP Turbo Blanket, 27won 90A RMM, 27won Turbo Inlet Pipe,27won front pipe+ downpipe + GIN Turbo


Problems/issues: None

Driving style: Occasional pulls mostly city driving following flow of traffic and sometimes sending it down backroads

Tuning experience notes: Probably one of the few people with stock headstuds and clutch with upgraded turbo and all the other mods Still no issues so far ive noticed slight clutch slippage if i am under 4k rpms and go full throttle but holding off until im above 4k has worked well with 0 slipping
I love how it feels after upgrading the turbo i am expecting to upgrade clutch and headstuds around 30k miles

(attached vid of how it sounds with new turbo with shroud of CAI off)

 

[gtman]

Just a reminder about how easy it is to add your tuned car. Just copy the template below, fill in your info and paste into a new post.

Vehicle:
Total tuned time:
Tuned miles driven:
Tuning device(s) used:
Tunes used:
Fuel used:
Additional related mods:
Problems/issues:
Driving style:
Tune experience notes:

 

[jcm]

I recently picked up a custom tune from Jester for my FL5, i was previously running the Hondata 91 basemap (california)

I didn't really realize beacuse I am on a PRL RMM, but the hondata 91 basemap was ROUGH by comparison to the new custom tune. now that I am on the custom tune the NVH and engine feel is significantly improved completely buttery smooth and significantly faster, it really has me wondering if any strange wear patterns have been occurring for the engine internals while i was on the hondata 91 basemap. if you're on a hondata basemap get off of that thing and onto a custom tune as fast as possible, there is no way that basemap can be any good long term for the health of the components

 

[danielbl]

I know this 11G tuning thread is not active but giving an update for those researching different tunes. Added 780 more miles on the Hondata 240 CARB tune. That’s 1,080 miles on this tune. (I only drive 5k miles/year.) All good so far. Random: best tuned hand-calculated MPG of 41.0 on 91 octane and 39.5 on 89 octane. Both were achieved while my wife and I slogged 5 hours on the highway to my dad’s house.

I recently compared the torque targets of 240 CARB vs. 250 CARB. With Hondata Mode enabled, they’re the same until you go into Sport mode. That’s when there’s a differentiation. I initially uploaded the tune with Hondata Mode disabled. I just recently reuploaded the 240 CARB tune with Hondata Mode enabled, and there’s a bit more punch in Sport vs. Normal.

I asked Hondata if the full “240 CARB power” is only available with Hondata Mode enabled (meaning I’ll have to drive in Sport for that), or is there still a bit more power than stock even if it’s disabled. Or is it basically a stock tune when disabled? Because when my wife and I drove with it disabled, the engine definitely felt punchier than stock. Awaiting their answer unless someone here knows. My searching didn’t yield results unless my search skills suck, which is plausible.

Added 270 more miles to the Si, bringing my total to a pretty tame 1,350 tuned miles (Hondata CARB 240). Still enjoying it and pretty much just drive around in Sport for the full beans. My average MPG post-tune is 33.9 MPG vs. pre-tune 31.4 MPG. Not too shabby, considering the extra power.

Nothing new done to the car except disabled the ASC, which I think was one of the best things I've done besides the tune. I hated the fake noise. I also got a nasty rock chip in the bottom corner of my windshield. It hasn't worsened, and I don't want to pay for a new windshield, so I covered it with a sticker.

 

[miles_away]

(UPDATE)

Vehicle: 2023 Civic Si

Total tuned time: over 2 years

Tuned miles driven: 39,000 mi

Tuning device used: KTuner V2

Tune used: Phearable 1.5R - 91 octane version, exclusively on map 3. I wanted the flexibility of the 91 tune for when 93 isn't available on road trips, and for better knock control behavior on 93.

Fuel used: 93 octane exclusively when available.

Additional related mods: the only other mod that could possibly effect power is the Megan Racing single-exit catback.

Problems/issues: No issues according to the Blackstone tests. The results on 0w40 looked even better than 0w30. So I'll plan on running 0w40 in the summer going forward, and 0w30 in the winter.

Driving style: Lots of track days (5 OTDs this year) along with multiple trips to the Appalachians. Lots of time was spent at the tune's 6800rpm rev limiter.

Tuning experience notes: Zero issues with clutch slip. On my last session at an OTD in August, my K.Con was hitting around 1.03, so I backed off a bit which helped. This was an isolated incident, and I'm chalking it up to bad gas. No issues at another OTD in September, nor in the mountains this month.

The attached Blackstone result from 9/25/25 is with Amsoil Signature 0w40, and the result from 7/4/25 is with Amsoil Sig 0w30. Surprised at how the wear metals were even lower despite the 0w40 sample having 1000 more miles on it. Both samples had two track days on them.
For reference, the 8/3/24 & 12/27/23 samples were with Amsoil Sig 0w30 & 0w20 respectively.

It was a very busy driving season for me this year. Still really enjoying this car.

 

[cryptolime]

(UPDATE)

Vehicle: 2023 Civic Si

Total tuned time: over 2 years

Tuned miles driven: 39,000 mi

Tuning device used: KTuner V2

Tune used: Phearable 1.5R - 91 octane version, exclusively on map 3. I wanted the flexibility of the 91 tune for when 93 isn't available on road trips, and for better knock control behavior on 93.

Fuel used: 93 octane exclusively when available.

Additional related mods: the only other mod that could possibly effect power is the Megan Racing single-exit catback.

Problems/issues: No issues according to the Blackstone tests. The results on 0w40 looked even better than 0w30. So I'll plan on running 0w40 in the summer going forward, and 0w30 in the winter.

Driving style: Lots of track days (5 OTDs this year) along with multiple trips to the Appalachians. Lots of time was spent at the tune's 6800rpm rev limiter.

Tuning experience notes: Zero issues with clutch slip. On my last session at an OTD in August, my K.Con was hitting around 1.03, so I backed off a bit which helped. This was an isolated incident, and I'm chalking it up to bad gas. No issues at another OTD in September, nor in the mountains this month.

The attached Blackstone result from 9/25/25 is with Amsoil Signature 0w40, and the result from 7/4/25 is with Amsoil Sig 0w30. Surprised at how the wear metals were even lower despite the 0w40 sample having 1000 more miles on it. Both samples had two track days on them.
For reference, the 8/3/24 & 12/27/23 samples were with Amsoil Sig 0w30 & 0w20 respectively.

It was a very busy driving season for me this year. Still really enjoying this car.

just an FYI. I experimented with running higher viscosity oils and my K. Con. numbers kept spiking really high with 5w-30. Switched back to 0w20 and no more spikes.

 

[miles_away]

just an FYI. I experimented with running higher viscosity oils and my K. Con. numbers kept spiking really high with 5w-30. Switched back to 0w20 and no more spikes.

Interesting. I'll see if it happens again in the spring. Before that happened, my fuel gauge was showing empty and the nearest station was a janky looking place in a small town, which is what made this think this was just some bad gas.

 

[SuperDave]

Update #2
Vehicle: 2023 civic si

Total tuned time: 1 year today

Tuned miles driven: 18,000 miles

Tuning device(s) used: Ktuner v1.2

Tunes used: phearable 1.5 R

Fuel used: 91+ 1.5 Gallons of E85

Additional related mods: PRL HVI, 27WON DP, MAP Street exhaust, 27won ftst

Problems/issues: None

Driving style: Normal 90% and the other 10% WOT in Mexico always on map 2, occasionally map 3

Tuning experience notes : car feels great. i did end up lowering the car

Question for you, or anyone here that knows.

Would it be a bad idea to run the Phearable 1.5R 93 tune, with only having 91 octane available? Leave it in Map 1 or 2. Then when I want more power, add a gallon of E85 for map 3?

 

[Domo_K]

Question for you, or anyone here that knows.

Would it be a bad idea to run the Phearable 1.5R 93 tune, with only having 91 octane available? Leave it in Map 1 or 2. Then when I want more power, add a gallon of E85 for map 3?

I believe that would not be a great idea as you will be prone to more detonation and you don't want that head gasket going bye bye. A gallon of E85 with the rest of your tank should be fine from what I have read in the forums though. I don't know as much about cars as the rest of these guys.

 

[Domo_K]

(UPDATE 2)
Vehicle: 2023 Sport Touring 6MT

Total tuned time: 4 months

Tuned miles driven: About 10k now

Tuning device(s) used: KTuner V2

Tunes used: TSP Stage 1 Map 3 mostly and now KTuner 21 dual map

Fuel used: 93 octane only

Additional related mods: 27won FMIC


Problems/issues: None, except me stripping my own head bolt threads a few months back and having to do the work myself. Drilled out the block and installed the ARP studs from TSP in there myself. Many people told me it would not hold unless it was perfectly straight. I drilled it out by hand and it is pretty straight but not perfect. New Stud sits higher but I found a Helicoil that gave me full thread engagement so the car has been holding just fine. It has been 2+ months and doing full pulls on highway and driving how I want.

What I did see, was that my LTFT was edging up higher and higher on TSP stage 1 map 3 (about 7%) Leaning out. Yikes. I am attributing that to the fuel feed just not being able to keep up with demands, there are no boost leaks as I have gone and tightened all the hoses for the intercooler and such. Will install maybe new HPFP and ported Fuel feed line in the future to see how it runs and then change it back when I feel like it. For now, I am KTunerV2 (21 dual) and it is running really well. Even full pulls only bring it up to around .55. I am happy with the switch. While I was on the TSP stage map 3, I had zero clutch slippage but I also am very light on it and I don't ride my clutch.

Temps were sitting around 200 with TSP stage 1 Map 3 and now they sit a little bit lower (188-190)with the KTuner 21 dual for some reason.

Driving style: Occasional pulls mostly highway driving and some city but when I feel like it, I will make some pulls.

Tuning experience notes: I am on aftermarket head studs now but only after a botched 1 by 1 method attempt that I rushed. My fault of course. Will be adding a downpipe, TIP and the 271 duct intake to complete my FBO in the future some time. May not want to push it as the head stud job I am unsure of but zero issues and I have replaced the head gasket as well on the stud install. Would have known immediately if I head gasket was not done right. lol.

 

[SiDad]

Vehicle: 2024 Civic Si

Total tuned time: About 1 week

Tuned miles driven: Around 200 miles

Tuning device(s) used: Ktuner

Tunes used: TSP stage 1

Fuel used: 93

Additional related mods: K&N filter, PRL intake hose, PRL intercooler

Problems/issues: None

Driving style: I basically drive the car to work (15 min) or when I’m not driving my wife’s car. I’ll do some pulls every now and then but don’t beat it too much. I usually wait until 3k to really step on the gas.

Tune experience notes: I mostly use map 2 in sport mode. Don’t get much in 2nd gear but once it’s in 3rd and 4th the car is a rocket! I plan on upgrading the clutch eventually but no signs of slipping at all. Also worried about the head studs so probably won’t use map 3.

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