i30N — Stage 2 ECU Tune
- 70Nm additional torque in mid-RPM range
- Improved power-to-weight ratio from 118.3 kW/ton to 124.6 kW/ton
- Enhanced throttle response and mid-range acceleration
- Increased intercooler efficiency for sustained performance
This 2021 i30N build centres on thermal management and breathing. With the Wagner intercooler keeping charge temps in check and the Forge intake feeding the turbo, the Stage 2 file extracts a modest but useful power lift: 4 kW at the wheels, pushing output to 170 kW. Torque is where the benefit sits—up from 285 Nm to 310 Nm, giving better mid-range punch without leaning hard on the factory block.
The midpipe helps flow, and the tune addresses throttle response and boost delivery to suit the hardware. It's a sensible step for a hot hatch that sees regular track days or tight back-road work. Nothing wild, but the torque curve is noticeably fatter where you actually use it.
Why such a small power gain for Stage 2?
The factory i30N tune is already quite aggressive. The 4 kW wheel gain reflects what's achievable on pump fuel with bolt-ons when you're starting from a well-sorted factory map. The real benefit is the 25 Nm torque increase and improved delivery.
Is the Wagner intercooler necessary for this tune?
On track or repeated hard pulls in summer heat, yes. The larger core holds charge temps down where the factory unit heat-soaks, and the tune takes advantage of that consistency.
Will this suit 98 RON pump fuel?
Yes. The calibration is written for Australian 98 RON, and the hardware supports it without needing E85 or race fuel.
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