Remapping the Audi TT (2018), 45 TFSI 245HP.
A Stage 1 remap on the 45 TFSI 245HP fitted to the Audi TT (2018) is firmly power-led: BHP climbs from 245bhp to 320bhp (a 30.6% gain), while torque rises a more modest 21.6% from 370Nm to 450Nm.
As a turbocharged petrol, there is real headroom here, and this transformative gain shows up mainly as a broader, more responsive power band rather than one dramatic jump. These figures apply to 2018 models.
Typical remap gains for the TT 45 TFSI 245HP
Standard vs Remapped
Standard vs Remapped
- Power: 245bhp standard, 320bhp after a Stage 1 remap.
- Torque: 370Nm standard, 450Nm after a Stage 1 remap.
- This is a power-led gain: BHP increases by more than torque, widening the usable power band rather than boosting low-end pull.
- This is a turbocharged engine, which typically means further headroom exists beyond Stage 1 if hardware is upgraded.
- As a petrol engine, the practical benefit is mainly felt as sharper throttle response and a broader power band.
- These figures apply specifically to 2018 models.
- These are Stage 1 figures only, achieved without any hardware changes.
Questions about remapping your TT 45 TFSI 245HP
How much power and torque does a Stage 1 remap add to the Audi TT (2018) 45 TFSI 245HP?
A Stage 1 remap typically takes the Audi TT (2018) 45 TFSI 245HP from 245bhp to around 320bhp, and torque from 370Nm to around 450Nm. This is a transformative gain achieved entirely through software, with no hardware changes required.
Is the Audi TT (2018) 45 TFSI 245HP a good candidate for remapping?
Generally, yes: as a turbocharged engine it has the headroom to respond well to a quality remap, and the transformative gain shown here reflects that. The main caveats are condition, not the engine itself, a healthy service history, no outstanding fault codes, and (for diesels) a clear DPF and EGR are what actually determine whether this particular car is ready for a remap.
Will remapping affect the warranty on my Audi TT (2018)?
A manufacturer can only void the parts of a warranty that the remap directly affects, not the entire vehicle, under the Consumer Rights Act and EU Block Exemption principles. In practice, on a Audi TT (2018) 45 TFSI 245HP this usually means engine and transmission-related claims are the ones worth discussing with a reputable tuner before booking.
What should I check before booking a remap for my Audi TT (2018) 45 TFSI 245HP?
Before booking, confirm the tuner uses a custom or bespoke file rather than a generic off-the-shelf map, ask whether they do a pre-remap health check, and check service history and mileage on your specific Audi TT (2018).
What's the difference between a Stage 1 and Stage 2 remap for the 45 TFSI 245HP?
Stage 1 is software-only and is what the figures on this page reflect. Stage 2 builds on that, but on a turbocharged engine like this, Stage 2 usually adds further gains but requires supporting hardware such as an upgraded intake or exhaust, so it is a separate conversation with a tuner rather than an automatic next step.
Will remapping my Audi TT (2018) affect my insurance?
Yes, always, a remap is a modification and must be declared to your insurer regardless of size. Given this transformative gain on the 45 TFSI 245HP, expect a likely premium increase, and it is worth getting a quote from a specialist modified-vehicle insurer before booking the remap itself.