Mercedes S-class S 450 340(+05)
Engine Tuning Chester

Mercedes S-class S 450 340(+05): remap at a glance

• Fuel: Petrol
• Standard power: 340 bhp, remapped: 363 bhp (+23 bhp, +7%)
• Standard torque: 460 Nm, remapped: 500 Nm (+40 Nm, +9%)
• Service: stage 1 ECU remap, fully dyno tested

How engine tuning works on a petrol Mercedes S-class

With a petrol engine the remap works through the ECU's ignition, fuelling and turbo boost tables. Re-calibrating them within safe limits releases power that is already there, rather than adding anything to the engine.

Mercedes S-class S 450 340(+05) against other S-class engines

Of the 16 petrol S-class engines in our data, this one comes 12th for power gain, which is 9 bhp below the S-class petrol average of 32 bhp.

Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 23 bhp and 40 Nm sits below that benchmark.

Mercedes S-class ECU tuning in Chester

Whether you live in Chester or nearby, the Chester Remap Experts site is your local route to a quote. We regularly work with drivers in Nantwich, Sandbach, Runcorn, Northwich and Knutsford and nearby areas of the North West.

You get a fully dyno tested remap, a 30 day money back guarantee and a lifetime software warranty with every job. Get your quote today on 0800 779 7864.

If you are closer to Cheshire, Merseyside and Liverpool, those neighbouring Remap Experts sites can help too.