Language

Dealer Banner - copy - copy

Dyno Developed Software & Unrivalled
Technical Support.

JOIN THE CELTIC TUNING NETWORK.

BECOME A DEALER
Super Car - copy

An ECU Remap for your exotic car
can significantly improve your driving
experience.

SUPER CAR TUNING

SELECT YOUR CAR
Diesel Tuning - copy

ECU Remapping your Turbo Diesel has
never been so easy. With improved power
and fuel economy one simple step away.

DIESEL CHIP TUNING

FIND OUT MORE
Truck Tuning - copy

Tuning your truck can improve your pulling
power and fuel economy. See how Celtic
Tuning can help you and your fleet.

TRUCK / HGV ECU REMAPPING

FIND OUT MORE
Tractor Tuning - copy

Towing power is essential for any
farmer. Improve the power and
fuel economy of your tractor with
an ECU Remap.

TRACTOR ECU REMAPPING

FIND OUT MORE
previous arrow
previous arrow
next arrow
next arrow
Audi

  • Model:

    Audi RS4

  • Variant:

    4.2 V8 FSI 414 bhp

  • Years:

    2005-2008

  • Fuel:

    Petrol

  • Engine Size:

    4163 ccm

  • ECU Type:

    Bosch MED9.1.1

Audi RS4 4.2 V8 FSI 414 bhp

Share
Back to Models

The 4.2 V8 FSi is hardly lacking power but with a 35bhp increase this engine gets the power it deserves. The response is a lot sharper and with good gains in mid range torque, it provides for superb performance. The 155mph speed limiter is removed on the RS4 variants.

Request Quote
Stage 1
Original Modified Difference
414

bhp

449

bhp

+35

bhp

317

lb/ft

352

lb/ft

+35

lb/ft

Stage Notes

The stage 1 software on this vehicle is designed for use with standard components and within tolerances.

This is classed as our fast road application which is the best all round performance for stock vehicles.

Available Services

Rev Limit removal
VMax removal

Select Your Vehicle

or find your vehicle below

   Return to reg. search