Two Step Performance K-Tuner

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KTuner V2.0 Tuning Package w/ Free TSP Tune & 2 Day Shipping!

KTuner V2.0 Tuning Package w/ Free TSP Tune & 2 Day Shipping! - Two Step Performance

How to install it in 15 mins?

1. Plug Into the OBD-II Port: 

Locate your car’s OBD-II port (usually under the dashboard) and connect the K-Tuner device.

2. Connect to Your Computer: 

Use the USB cable to link K-Tuner to your computer, then open the K-Tuner software.

3. Upload the Tuning Map: 

Choose your desired tuning map (factory, sport, or custom) and upload it to the K-Tuner device.

4. Activate and Enjoy: 

Once the upload is complete, start your car and experience the enhanced performance instantly! It's that easy – no tools or expertise required!

does it fit my car?

K-Tuner supports various Acura and Honda models, including popular ones like Accord, Civic, ILX, CR-V, and S2000. For a complete list of supported models, click the button below.

SEE THE FULL LIST

Free 2-Day Shipping

Please note, the FREE 2-Day Shipping offer is for orders in the lower 48 states only. Any orders outside of this specified territory may be required to pay for additional shipping costs and customs duties/fee where applicable.

what’s included?

- The KTunerFlash V2 tuning package comes with a single KTunerFlash V2 hardware unit paired with a single user license for the KTuner Software.

- Includes our famous TSP Stage 1 map for Si or Non-Si! - The tune will automatically be included if you specify an eligible vehicle (2016+ Civic with 1.5L turbocharged engine) before adding to cart. -

**All standard KTuner base maps are also included regardless of your selection.

50,000+ Happy Customers

KTUNER V2.0 TUNING PACKAGE W/ TSP TUNE

FEEL THE ADRENALINE AS YOU'RE GLUED TO YOUR SEAT!

Accelerate faster, instantly
Driving feels exciting again
Install it in 15 minutes
Engine-safe, reversible changes
Monitor stats in real-time
Control your driving style

Accelerate faster,

instantly

Driving feels exciting again

Install it in 15 minutes

Engine-safe, reversible tuning

Monitor stats in real-time

Control your driving style

Options

without Dual T Suction Mount

with Dual T Suction Mount

with Center Console Mount (16+ Civic Only)

with Above Stereo Mount (16+ Civic Only)

Do you have a 2025 Honda Civic Si?

No

Yes - Add Connectivity Kit

FREE 2-DAY SHIPPING

60-DAYS RETURN

LOW STOCK

CLICK TO QUICKLY SCROLL TO:

REVIEWS

INSTALLATION

REVIEWS

INSTALLATION

faster acceleration

Instant throttle

Safe tuning

Easy installation

Performance data

Quick overtakes

Reversible changes

Smoother shifting

Fuel efficiency

Safe tuning

Easy installation

Performance data

Quick overtakes

Reversible changes

Fuel efficiency

Smoother shifting

Instant throttle

faster acceleration

WHAT DRIVERS ARE SAYING

Title

4.88/5

Based on 512 Reviews

EVERYTHING I HOPED FOR!

Speaking as someone with no experience in the tuning world, the Flash V2 made tuning my Civic a breeze. TSP’s support was extremely helpful with getting my included tune to me, and answered any questions I might have. Plus, I really like how the V2 doubles as display.

Sam Holliday

VERIFIED BUYER

MY CAR IS AWAKE NOW!

This tuner surely woke up my 2019 civic lx hatch and all turbo lag is gone. Time for some fun.

Morbid Thrasher

VERIFIED BUYER

EASY MODE FOR MAX

PERFORMANCE

Everyone needs to do this to their car first before even thinking about any hardware mods. The increase in power is insane. Can be scary at first if you don't know what you're doing when all the lights on your dash start going off.

Maher Labeb

VERIFIED BUYER

Ktuner V2 + TSP stage 1 = Quick

Definitely wasn’t disappointed with my Ktuner V2. The base 21 psi tune from Ktuner was already a game changer, but the TSP stage 1 tune gave it more of a kick which transforms the car into a little pocket rocket from stock. Pair it up with a PRL CAI and enjoy the louder turbski sounds.

James Chayadi

VERIFIED BUYER

FIRST GO FAST PART

I love the ktuner and tsp even more! I struggled to get started with my ktuner and was having some issues but tsp was quick to respond and help me in any way that they could, honestly helped more than ktuner themselves lol. Great product and customer service overall!!

Lillian Taylor

VERIFIED BUYER

SMALL YET POWERFUL

Doing wonders for my 10th gen Civic Si. Really is an amazing difference in every gear. Running TSP Stage1+. Does take a bit to setup though, especially if your PC doesn’t have high power USB to run the Ktuner and if you’ve never used one before, like me. Overall, TSP had the best deal and fastest shipping I could find.

Sean Hall

VERIFIED BUYER

Install K-Tuner in 15 mins

It's that easy – no special tools or expert knowledge needed!

Plug Into the OBD-II Port

Locate your car’s OBD-II port (usually under the dashboard) and connect the K-Tuner device.

Connect to Your Computer

Use the USB cable to link K-Tuner to your Windows computer, then open the K-Tuner software.

Upload the tuning map

Choose your desired tuning map (factory, sport, or custom) and upload it to the K-Tuner device.

Activate and Enjoy

Once the upload is complete, start your car and experience the enhanced performance instantly!

Feel the power the moment

you punch it!

Dominate the Road with Instant Speed

Feel the adrenaline as your car accelerates faster and shifts gears smoother for a thrilling drive every time.

More Power, Less Fuel Wasted

Crush the road with optimized fuel efficiency - save on gas without losing the performance you crave.

Switch Modes, Feel the Difference

Instantly toggle between sport, economy, or custom driving modes and experience adrenaline-packed control tailored to your style.

Performance Stats in Real-Time

Monitor throttle, boost, fuel efficiency, and engine stats in real-time — know your car’s performance at every moment.

SELECT YOUR VEHICLE

60-Day Money-Back

Over 500 Happy Customers

REAL PERFORMANCE BOOST

REAL DIFFERENCE

These numbers are based on tests performed on a 2020

Honda Civic 1.5T

+19%

More Horsepower

+18%

More Torque

+10%

Quicker to 0-60 mph

+50%

Faster Throttle Response

+9%

Better Fuel Efficiency

+19%

More Horsepower

+18%

More Torque

+10%

Quicker to 0-60 mph

+50%

Faster Throttle Response

+9%

Better Fuel Efficiency

METRIC

AFTER K-TUNER

BEFORE K-TUNER

IMPROVEMENT

HORSEPOWER (HP)

215

HP

180 HP

+35 HP (+19%)

+35 HP

Torque (lb-ft)

210

lb-ft

170 lb-ft

+33 lb-ft (+18%)

+33 lb-ft

0-60 mph Acceleration

6.5 seconds

7.2 seconds

-0.7 seconds (10% faster)

-0.7 seconds

Fuel Efficiency (Eco Mode)

Fuel Efficiency

30.4

mpg

27.7 mpg

+2.7 mpg (+9%)

Throttle Response

50% faster

Standard

+50% quicker response

*NOTE: Results may vary depending on the vehicle model, engine setup, and tuning preferences.

SELECT YOUR VEHICLE

60-Day Money-Back

Over 500 Happy Customers

WHAT OUR CUSTOMERS

ARE SAYING

REALLY WAKE THE CAR UP

The KTuner paired with the TSP Stage 1 tune really is the best bang for the buck. Wakes the car up like a mf. Customer service is also great. Had an issue where I hadn't received the Tune after two days, but Savanah got a hold of the help ticket and I had it within 45 mins.

David Collins

VERIFIED BUYER

Really fast and great product

I enjoy the throttle response, however, I wasn’t able to tune it to stage 2, not because it didn’t work but because if I do, the dual stage 2 or stage 1 tune, in sport mode, top end cuts out and triggers my check engine light. In eco mode, it’s jittery like it hops as if I were driving manual. Other than that, I love this product; feels pretty solid for a quick boost in throttle response.

Robert Larkin

VERIFIED BUYER

MUST HAVE for 10th Gen Civic Si

Anyone that is afraid of bricking or hurting your engine/trans, rest assured. This tune is subtle but wakes up your car. Makes it feel so much better, better power, better acceleration, better shift feel. AND the install is almost foolproof. Just follow the instructions on the website, and enjoy your spicy Si.

Jess Laywell

VERIFIED BUYER

KTUNER, TSP TUNE STAGE 1

WOW. I should have done this first. It is truly a different car now. I have a 2023 Si.

James Chayadi

VERIFIED BUYER

REPEAT CUSTOMER

Overall the easiest online shopping experience, with full customer support. Online tutorials are great! Thank you for making it easy! The TSP tune... can’t express the greatness.

Greg J

VERIFIED BUYER

100% WORTH IT

Installation was easy. I recommend watching a YouTube video on how to install. The power that came after installation was 100% worth the purchase. 👍

Cindy

VERIFIED BUYER

Tired of Feeling Left Behind?

You’ve been there - watching others fly past, their cars roaring with power, while your ride just can’t keep up. The frustration builds every time someone talks about their latest upgrade or leaves you in the dust at a meet.

One Upgrade, Endless Respect

Then it happened. You installed the K-Tuner. That first pull was electrifying - smoother shifts, instant throttle response, and pure adrenaline. Suddenly, your car wasn’t just a way to get around. It was a statement.

Welcome to the Brotherhood

Now, you’re part of it. The nods at meets, the envy from friends, and the shared stories of late-night runs. It’s not just about speed - it’s about being part of a community that lives for the love of driving.

THE GEARHEAD'S DREAM SETUP

SELECT YOUR VEHICLE

60-Day Money-Back

Over 500 Happy Customers

Fast & Free Shipping

Free shipping on all orders over $249 to the continental US. Most orders delivered within 1-3 days!

60-Day Returns

Two Step Performance offers 60-day returns! Your satisfaction is our top priority.

Flexible Payments

Financing options are available. Rates as low as 0% for qualifying customers!

Unbeatable Support

Reach out to our support team and allow us to assist with any of your needs.

How does the KTunerFlash V2.0 improve my vehicle's performance?

The KTunerFlash V2.0 allows you to optimize your vehicle’s ECU for improved power, torque, fuel efficiency, and responsiveness. With custom tuning options and pre-loaded maps, you can fine-tune your car to match your driving style and performance needs.

Will using the KTunerFlash V2.0 void my vehicle's warranty?

The KTunerFlash V2.0 is designed to be easily reversible. If needed, you can restore your vehicle's factory settings, minimizing any risk to your warranty. We recommend checking with your dealership for specific policies.

Is the KTunerFlash V2.0 safe to use on my vehicle?

Yes, the KTunerFlash V2.0 is designed with safety in mind, offering reliable and stable tuning solutions. It allows you to revert back to your factory settings at any time if needed. However, we recommend following the tuning instructions carefully and consulting with a professional tuner for custom maps to ensure optimal performance.

How long does it take to install and set up the KTunerFlash V2.0?

The installation process is quick and straightforward, taking approximately 15 minutes. Simply connect to your vehicle's OBD2 port, follow the instructions, and you're ready to go.

What vehicles are compatible with the KTunerFlash V2.0 Tuning Package?

The KTunerFlash V2.0 Tuning Package is compatible with a wide range of Honda and Acura models. For a full list of compatible vehicles, please refer to the KTuner compatibility chart on our website or contact our customer support team for assistance.

Do I need any special tools or equipment to use the KTunerFlash V2.0?

No special tools are required. The KTunerFlash V2.0 connects directly to your vehicle's OBD2 port, allowing you to flash and monitor your ECU using the provided software. All you need is a laptop with Windows to install the KTuner software and manage your tuning.

Can I switch between performance maps on the go?

Yes, the KTunerFlash V2.0 allows you to store multiple performance maps and switch between them easily using the touchscreen interface, without the need for a laptop.

Do I need internet access to use the KTunerFlash V2.0?

No, you do not need internet access for the device to function. Once the software is installed on your laptop and the maps are loaded, the KTunerFlash V2.0 works independently.

Can I sell or transfer the KTunerFlash V2.0 to another vehicle?

Yes, but the device is locked to one ECU at a time. You can revert your current vehicle back to factory settings and unlock the KTunerFlash V2.0 for use on another compatible vehicle.

What happens if I encounter issues during setup or tuning?

Our dedicated support team is here to help. Whether you need troubleshooting assistance or guidance during setup, contact us, and we'll ensure you're back on track.