Audi A4 Rs4 420(b7)
Engine Tuning in Crawley

Audi A4 Rs4 420(b7): remap at a glance

• Fuel: Petrol
• Standard power: 420 bhp, remapped: 450 bhp (+30 bhp, +7%)
• Standard torque: 430 Nm, remapped: 485 Nm (+55 Nm, +13%)
• Service: stage 1 ECU remap, fully dyno tested

How engine tuning works on a petrol Audi A4

Factory petrol calibrations leave margin for poor fuel and hot climates. A remap tunes the ignition, fuelling and boost maps to make better use of that margin, which shows up as livelier throttle response and stronger acceleration.

How the Audi A4 Rs4 420(b7) compares

Among the 23 petrol A4 engines we have figures for, the Rs4 420(b7) ranks 16th for power gain, 6 bhp below the A4 petrol average of 36 bhp.

Across our whole catalogue the average petrol remap adds 27 bhp and 51 Nm, so this engine's 30 bhp and 55 Nm sits at or above that benchmark.

Audi A4 chip tuning in Crawley

Remap Experts Crawley is part of the UK-wide Remap Experts network. We regularly work with drivers in Sevenoaks, Tonbridge, Swanley, Sidcup and Ortington and nearby areas of the South East.

All our remaps are fully dyno tested, backed by a 30 day money back guarantee and covered by a lifetime software warranty. Request a quote online or call 0800 779 7864.

If you are closer to Sussex, Surrey and Croydon, those neighbouring Remap Experts sites can help too.