RS3 Tuning Packages

AUDI RS3 Tuning Packages

The Audi RS3 is one of the most tuneable performance cars on the road. Its legendary 2.5 TFSI five-cylinder engine, razor-sharp Quattro system and strong factory hardware make it an exceptional platform for safe, reliable power gains. With the right calibration and supporting upgrades, the RS3 transforms from a quick hot hatch into a genuinely supercar-level performer, delivering explosive acceleration, sharper throttle response and incredible top-end pull.

At Boost Performance, we specialise in custom RS3 tuning — from Stage 1 ECU remaps to full hybrid-turbo builds — all developed and verified on our World-Class Dyno for maximum accuracy and repeatability.

Stage 1 - 480 bhp (486 PS) / 440 lbft (596 Nm)

STAGE 1 — ECU REMAP (Stock Hardware)

Power: 420–500hp (model-dependent)

What’s Included

  • Custom ECU calibration (98/99 Ron or optional 95 map)

  • Boost, ignition & torque optimisation

  • Full health check + dyno verification

  • Optional TCU gearbox tune

Recommended For

Drivers wanting instant gains on a completely stock car.

Benefits

  • Big jump in power

  • Faster throttle response

  • Strong mid-range torque

  • Smooth, factory+ drivability

ECU Remap

£600.00 exc VAT
£720.00 inc VAT

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Stage 2 - 500 bhp (506 PS) / 480 lbft (650 Nm)

STAGE 2 — FULL BOLT-ON STREET PACKAGE

Power: 480–540hp
Price: £1,800–£3,500 (depending on parts)

Supporting Hardware

  • High-flow downpipe (sports cat or decat)

  • Performance intake system

  • Upgraded intercooler

  • Optional TCU tune for quicker shifting

What’s Included

  • Custom ECU calibration for Stage 2 hardware

  • Full dyno tuning session

  • Heat management & boost control optimisation

Benefits

  • Stronger top-end power

  • Lower intake temps = repeatable performance

  • Faster, smoother gear shifts with TCU tune

  • Sharper response across the rev range

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500bhp in the RS3 creates one of the best sleepers on the road and an extremely exciting drive.

Stage2 takes approximately 4-5 hours to fit the intercooler and apply the calibration to a standard car and customers are welcome to wait in our waiting area or arrange for a Courtesy car to explore the local area.

 

Stage 2
Includes Forge Intercooler, K&N air filter, State 2 ECU remap, labour (4-5 hrs)

£1,954.94 exc VAT
£2,345.93 inc VAT

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STAGE 3 — HYBRID TURBO PACKAGE

Power: 580–650hp+ (turbo-dependent)
Price: £4,500–£9,000

Supporting Hardware

  • Hybrid turbo upgrade (TTE, TR, Littco, etc.)

  • High-flow downpipe

  • Large intercooler

  • Performance intake

  • Upgraded fuel pump (where needed)

  • TCU tune required

What’s Included

  • Full custom ECU & TCU calibration

  • Turbo-specific boost optimisation

  • Full dyno mapping with safety checks

Benefits

  • Huge, supercar-level acceleration

  • Massive top-end power

  • Great drivability on the street

  • Ideal “fast road / weekend toy” build

£5,180.00 exc VAT
£6,216.00 inc VAT

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STAGE 4 — BIG TURBO / BUILT ENGINE PACKAGE

Power: 700–1,000hp+
Price: POA (£10,000–£25,000+ depending on spec)

Supporting Hardware

  • Large-frame turbo system

  • Fully forged engine (optional above 750hp)

  • High-flow injectors & multi-pump fuel system

  • Large intercooler & charge pipes

  • Upgraded oil cooling

  • Full exhaust and intake system

  • TCU tune

  • Motorsport ECU calibration

What’s Included

  • Custom big-turbo mapping

  • Full engine build (optional for high-power builds)

  • Motorsport-grade dyno tuning

  • Boost-by-gear setup

  • Traction & safety strategy configuration

Benefits

  • Extreme acceleration & top-end

  • Completely customisable build spec

  • Designed for drag, half-mile or high-power road setups