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A Stage 1 remap takes the 510bhp Giulia Quadrifoglio to around 560bhp and 720Nm on our rolling road for the 2016 to 2018 car, and to about 545bhp and 710Nm on the 2019-on version, which left the factory with a little more of its potential already used. The 2.9 litre twin-turbo V6 responds well because it is a genuinely strong engine held to a sensible number for warranty reasons rather than by its hardware.
Measured on our Mustang AWD rolling road in Maidstone. Wheel figures, drivetrain loss added for the flywheel numbers.The Alfa Romeo Guilia Quadrifoglio is a beautiful and carefully designed saloon car. From the aerodynamic design all the way to the sleek leather and carbon fibre interior, it is a delight to see! The Guilia Quadrifoglio is Alfa Romeo’s first performance car since the 4C, and you can see just how far they have come! This is the ONLY production saloon in the world to have active aero! Read more about the Guilia Quadrifoglio on Alfa’s site here. Our in-house file writing experts were able to take Glenn’s stunning Guilia to the next level. Using the latest tools, they developed a custom Stage 1 map to gain a boat-load more power!
Stocks Figures
When it leaves the factory, the Alfa Romeo Guilia Quadrifoglio produces a whopping 505 BHP and 600 Nm torque! That on it’s own is enough to make your hair stand on end! We know from experience that most cars tend to have a little more power than factory specs; take this Stelvio Quadrifoglio N-Ring Edition we tuned last year for example! To see how much power Glenn’s car in particular was producing, we strapped it down to our Dyno and carried out a couple of power runs. The results were in: A very impressive 510 BHP in its current state, but why stop there? We know the engine in this car is more than capable of giving us much more significant power figures! After reading the stock ECU file we got to work with our file alterations and by monitoring the results using the Dyno, we started to get close to the perfect tune.
Tuned Figures
After tweaking and testing the map, we achieved some results worth smiling about: 547 BHP and 801 Nm torque! Quite a respectable increase of +37 BHP and +151 Nm torque thanks to our Stage 1 remap. Now this car can well and truly leave the competition in the dust! A C63 AMG has got nothing on this now! During our road test, the car felt more solid with all the additional power across the rev range as well as improved throttle response. Safe to say Glenn is over the moon with the improvements to his car and wished he came to us sooner!
If you own a Guilia Quadrifoglio and would like to experience all this power for yourself, call today or use the form above!
Click here to see our parts and services for the Guilia Quadrifoglio!
Photos from the build
11 photos of this Alfa Romeo Giulia 2016 - 2018 in our Maidstone workshop. Tap any to enlarge.
Questions we get asked
How much power does a Giulia Quadrifoglio gain?
The 2016 to 2018 car goes from 510bhp to around 560bhp and 720Nm. The 2019-on car goes to around 545bhp and 710Nm. The Stelvio Quadrifoglio uses the same engine and tunes to the same figures in the taller body.
What about the GTA?
The 540bhp GTA goes to around 545bhp, so the honest answer is that there is very little in it. Alfa had already taken most of what the standard hardware gives. If you own one, the gearbox and the exhaust are better places to spend money than the engine map.
Is the 2.9 V6 reliable enough to tune?
It is a strong engine, and a sensible Stage 1 does not change that. What matters more is condition and servicing history, particularly the oil and the cooling system, which we check before writing anything.
Do you tune the ZF gearbox as well?
Yes. The Giulia uses the ZF 8HP, which has its own torque limiter and its own shift calibration. Tuning it sharpens the shifts, raises the limiter so the extra torque is not clipped and gives a manual mode that holds a gear.
Does it need a downpipe?
Not for Stage 1. If you want to go further, a sports cat downpipe is the usual next step and the file gets written around it. We will tell you what the realistic gain is before you spend anything on hardware.
Will it affect my warranty?
A dealer can detect a remap and may decline a related claim. We keep your original file and can return the car to standard before a dealer visit.
