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CSTuned ECU Tuning - Subaru / Toyota / Nissan / Infiniti / Ford / GM / Stellantis / Honda / BMW / Audi / Volkswagen

10/09/2026

What do you get when you combine a ton of air with a ton of fuel? 🤔🤷‍♂️🚀

This 2010 STI features parts from Precision Turbo, Kelford Cams, Injector Dynamics, and Extreme Turbo Systems in combination with a Teter Automotive long block - giving us the confidence to push this setup to the limit 📈

Tuned using EcuTek, we were able to extract a little over 750 wheel horsepower before the fuel system tapped out. A set of 2600s and a 5 bar MAP sensor could put this setup comfortably into the 800s 💪

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

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There’s nothing quite like a tastefully modified VA chassis 🙌Shoutout to for the chance to remotely dial in this ridicu...
10/08/2026

There’s nothing quite like a tastefully modified VA chassis 🙌

Shoutout to for the chance to remotely dial in this ridiculously clean bolt-on WRX 💪

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

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10/07/2026

This sweet STI came in to get some dyno numbers on pump 93 to go along with their new (to them) car 💪

Perhaps we’ll see this car again for E85 tuning? Only time will tell 😏

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

Website: https://www.cstuned.com/services

Facebook: https://www.facebook.com/CSTunedChicago

Instagram: https://instagram.com/cstunedofficial

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10/03/2026

Not small 🤏 and DEFINITELY not slow 🐌

A couple of bolt-ons plus some magical 🌽 juice and this big body raptor absolutely RIPS! Putting out over 500 wheel horsepower and nearly 600 lbs-ft of torque, this is sure to put a smile on the owner’s face 😁

As always, shout out to Teter Automotive for providing the dynamometer, COBB Tuning for providing the calibration software, and Freedom Forged for putting the build together 🫡

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

Website: https://www.cstuned.com/services

Facebook: https://www.facebook.com/CSTunedChicago

Instagram: https://instagram.com/cstunedofficial

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This is NOT your ordinary FA20 😏This monster is outfitted with an STI drivetrain, secondary fuel injection, and enough a...
09/25/2026

This is NOT your ordinary FA20 😏

This monster is outfitted with an STI drivetrain, secondary fuel injection, and enough airflow to push this car well into the 500 wheel horsepower territory 🤯

Shout out to Brian and Brandon for the opportunity to remote tune this beast of a WRX and to help push the limits of the factory engine management system once again 👨‍💻

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

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Red on red? Yes PLEASE 🥵Huge thank you to for the opportunity to remotely tune this flex fuel rocket ship 🌽🚀What are yo...
09/24/2026

Red on red? Yes PLEASE 🥵

Huge thank you to for the opportunity to remotely tune this flex fuel rocket ship 🌽🚀

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

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Do you want FREE admission to Subiefest Midwest 2026? You’re in luck! 🍀 We are giving away two premium tickets to SubieF...
09/22/2026

Do you want FREE admission to Subiefest Midwest 2026? You’re in luck! 🍀

We are giving away two premium tickets to SubieFest Midwest! These tickets include:

Admission for one to SubieFest Midwest 2026 🔑
One SubieFest Midwest 2026 T-Shirt 👕
20 door prize tickets 🎟️
Official event decals 🔥
One goody bag 🎉

To claim your free ticket, all you have to do is like this post and comment below letting us know that you’re interested in going to SubieFest Midwest 2026! The winners will be selected at random on 10/01/2026 💪

Good luck, and we’ll see you there! 😎

SubieFest Midwest
Saturday, October 10th, 2026
Route 66 Raceway - Joliet, IL

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Who doesn’t love a clean GD? 🧼Shout out to for the chance to remotely tune this GEM of a Subaru 👌What are you waiting f...
09/21/2026

Who doesn’t love a clean GD? 🧼

Shout out to for the chance to remotely tune this GEM of a Subaru 👌

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

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09/17/2026

Starting off Thursday with a fun one! This Nissan GTR came in with a blown transmission and is leaving a completely different animal 😈

Step 1 - Replace the damaged transmission with a built unit from ✅

Step 2 - Baseline the new setup at 452.43 wheel horsepower and 488.32 wheel torque using the custom calibration it originally came in on ✅

Step 3 - Calibrate the new setup for 93 octane petrol at 550.58 wheel horsepower and 603.86 wheel torque ✅

As always, none of this would be possible without the assistance of Teter Automotive for providing the dynamometer and EcuTek Technologies for providing the calibration software 🫡

What are you waiting for? Let‘s get you tuned today! We offer world-wide custom ECU calibration services both remotely, and on-site at Teter Automotive in Montgomery, IL, USA 🇺🇸

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Like it or not, car show season is here! Is your car ready? 🔥Now is a great time to purchase your tickets for Subiefest ...
09/16/2026

Like it or not, car show season is here! Is your car ready? 🔥

Now is a great time to purchase your tickets for Subiefest Midwest! From what we have heard so far, this year’s event will surely be one for the history books 😁

As always, you can find us in the vendor area! Rumor has it that we’ll have some seriously jaw-dropping cars on display as well as plenty of free giveaways and great deals on your favorite performance, cosmetic, and tuning accessories 💪

See you there! 😎

SubieFest Midwest
Saturday, October 10th, 2026
Route 66 Raceway - Joliet, IL

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Address

2235 Cornell Avenue
Montgomery, IL
60538

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+17797071393

Website

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