OUR WORK
Here you can find some examples of tunes we have written for various Hyundai models.
All tuning is custom written for the vehicle on the day as we see it, and tested on our rolling road with dyno printout. Results will vary per car depending on age, condition, mods fitted etc.
i20n (2020- )
1.6 T-GDI | 204hp / 275nm (320nm in Overboost Mode)
We heavily specialise in the i20N platform and have spent countless hours completely reverse engineering the Kefico CPEGD3.20.1 ECU to gain full OEM level control of the engine. Unlike other tuners we have no need to "patch" the ECU or cheat sensor signals to get it to do what we want. All of our tunes are written in such a way that the ECU has full control of the engine, resulting in clean and safe power.
Please call or message us to discuss tuning your i20N if you have any questions, however below are a few frequently asked questions we get specifically about tuning the i20N.
"Have you got past the MAF limiter?" - In short YES. There's no single 'limiter', it's a combination of multiple airflow models and maps within the ECU.
"Can you stop boost from dropping off past 4500rpm now?" YES! Previously boost would peak at 2.5bar trailing to 2.1 bar at redline. We have full control of the ECU's boost control strategies and can hold as much boost to redline as we want depending on turbo fitted. On some upgraded turbo builds we've had up to 3bar of boost peak trailing to 2.6bar at redline.
"What turbo upgrade options do you have?" We offer two upgraded turbochargers for these cars. Stage 1 Upgraded Turbo (Compressor wheel only), this is good for 280hp~ and keeps factory spool at 2000rpm. Stage 2 Upgraded Turbo (Compressor + Turbine wheels), this is good for 300hp+ with spool at around 2400rpm.
"Are these engines strong enough for the power?" It's not so much power that breaks engines so much as the amount of torque it makes and how that is delivered. We've tuned these engines up to 480nm torque at just 2500rpm and not had any issues, the weak point is actually the clutch which is only good for around 430-440nm as standard. Upgraded clutches are however available.
BFG Boost Unlock
Below you can see example dyno graphs of previous customer cars.
Stage 1 - Stock Hardware.
Stage 2 - Intake / Exhaust Modifications. Here you can see our original tune vs our new tune with BFG Boost Unlock.
Stage 3 - Hybrid Turbocharger. Up until October 2026 the only way to tune a hybrid turbo to hold boost to redline was to de-calibrate the MAP sensor so the ECU thought it was making less boost than it was in reality. Here you can see a comparison showing this method vs our tune with BFG Boost Unlock which allows the ECU to see exactly what is going on, resulting in cleaner and safer power.
i30n (2020-2023)
2.0 T-GDI | 280hp / 392nm
Big Fish Garage
Unlike most tuning companies, we write all of our tunes in-house on the day for your car, specifically tailoring our software to your vehicle to ensure the absolute best driveability, power and efficiency.
We also have a 2WD and 4WD rolling road "Dyno" which means we can safely and accurately measure all aspects of your vehicles performance.
Our Dyno is often referred to as a "heartbreaker". Unlike most dynos which use a fixed calculation to measure your vehicles power, ours measures your vehicles drivetrain losses dynamically at every rpm through a power run, giving extremely accurate horsepower and torque readings at both the wheels and crank.
