Tuned By Loi

10/18/2026

Did some dyno testing on a customer's 2024 LC500 convertible that had a full custom catback exhaust fabricated. 91ACN fuel.

The car had an increase of +11WHP and +10FTLB TQ over the stock exhaust system.

Stock Exhaust Baseline: 403WHP / 374FTLB TQ
Stock Tune Custom Catback Exhaust: 414WHP / 384FTLB TQ

Dyno graph in comments.

10/17/2026

I'm hosting a special 1-day dyno tune event in the City of Industry for those in SoCal that are interested in getting a dyno Pro-Tune with me.

📍City of Industry, CA - SP Engineering
🗓️ Monday, October 26th
🕤 930AM till Close

Due to limited time for the day, tuning is only for the following models:

2015-2024 RCF
2016-2020 GSF
2022-2025 IS500
2018-2024 LC500

Tune Options:
Flex Fuel
Single map E85
Single map 91ACN
3-Way Map Switching
Simulated-DCT transmission tune

Please reach out to me by email or text the business number to secure your dyno slot!

📧 [email protected]
📱 515-505-3608

10/12/2026

My personal 2015 RCF baseline over at Dynojet Lexus Dyno Day event on 10-11-26.

Result 📈: 484WHP / 451FTLB TQ - 6th Gear

Map features include:
VF Tuner EROM Ver2 Flex Fuel Map
3-way map switching by factory cruise control buttons
AA80E transmission tune with Simulated-DCT
Downshift rev matching
EROM Ver.2 Direct AFR - AFR controlled at every RPM by throttle and load

Modifications:
headers
GFC-Auto Exhaust System Factory titanium midpipe with 3D printed titanium Z-pipe
BLITZ co.,ltd. Nur-Spec F-Ti axle-back
Ramair Filters Cone filter with velocity stack
Performance MRP Billet aluminum MAF housing with air straightener
LEMS/RunRiot Titanium intake elbow
HIGHSPARK IGNITIONCOIL JAPAN High Spark Japan Premium coilpacks
NGK Spark Plugs Ruthenium HX pn:93420
Boost-A-Pump
Baxter Performance spin-on oil filter adapter
Denso 150-2066 spin-on oil filter
Pearson Fuels E82% ethanol
Sunautopros Hyper Ground System

This car has fully tested the Simulated-DCT feature 2 months prior to public release. The first to fully develop, test, and implement 3-way map switching using factory cruise controls with VF Tuner software.

For tune inquiries and dyno scheduling please contact me by email or text the business number.

[email protected]
Text 515-505-3608

Dyno graph posted in FB post comments.

10/12/2026

2018+ IS RC GS RX EROM V2 is out now!

*Map switching
*Flex Fuel
*and more

Contact your pro tuners now
https://vftuner.com/pages/find-a-tuner

10/10/2026

Collaboration with VF Tuner with development and real world testing of the Toyota/Lexus map switching using factory cruise control buttons. This is an example on my personal 2015 RCF. This feature will be rolled out to all Gen2 2URGSE models.

10/10/2026

Lexus 2URGSE cruise control stalk map switching

10/10/2026

WiFlash v7 Firmware 1.9 Coming Out Soon!

Coming with this update:
* 250/500/800K CAN multi-speed support
* improved K-Line Support

If you already have our WiFlash device, there's no need to order a new one. We can update the firmware from your VF Tuner PC software.

10/08/2026

VF Tuner Gen1 2URGSE ISF EROM Ver2 Simulated-DCT transmission tune is now available!

Simulated-DCT: The most aggressive, firmest, and quickest shifts available for the AA80E.

Downshift Response: Enhanced rev matching

OEM+ style burble: Revised deceleration ignition timing to provide a burble feature that makes the car less of a jolt and minimize bucking.

Please reach out to me by email or text the business number to get the upgrade for your 2008-2014 ISF.

📧 [email protected]
📱 515-505-3608

10/07/2026