Aston Martin DBX 707 4.0 V8 Dyno Test - 707hp Performance Tuning

In our latest dyno test we have this incredible 2022 Aston Martin DBX 707 in for tuning and testing. It goes without saying that these luxury SUVs are a truly remarkable piece of engineering. Quoted stock figures speak for themselves, with power rated at 707hp and with 900Nm of torque, it accelerates from 0-60mph in 3.1 seconds.

For those looking to get even more from these prestige SUVs, owners will find tuning limitations due to the locked ECU, with no way to read or write the ECU data. This means that while traditional remapping is impossible, our tuning module offers the perfect solution here, providing fantastic gains without requiring a traditional ECU flash. This has the added benefit of being traceless once removed for warranty purposes.

So after an installation of our specially designed 4 Channel Pro Petrol chip tuning box, which connects to both Map sensors and both Boost sensors, it was up on the rollers to see what the engine could achieve.

Dyno testing before and after shows healthy gains across the rev range, with a significant increase in power and torque, really transforming how the DBX feels to drive.

Peak power was significantly increased, as we were able to lift it from 706hp at stock, up to 806hp with the box. If you take a look at the dyno graph below you can see how we change that curve (dotted red and blue lines). We give real consistency here, really opening up that mid-section, right up to that top end where we provide that additional +100hp at its peak, really transforming how it feels out on the road.

Torque also saw some impressive improvements. At stock the engine produced 937Nm and now 1080Nm with the box. If you take another look at the graph (solid lines), again you can really see that consistency, where we hold those gains across the entire rev range, delivering those increases exactly where it’s needed, adding that +143Nm at its peak.

Check out the full dyno test here: