Audi RS3 2.5 TFSI Engine

Audi RS3 2.5 TFSI Engine | Exclusive Motorsport-Rebuilt Unit

For sale is a fully rebuilt Audi RS3 2.5 TFSI engine, code DAZ, producing 294kW (400hp) — upgraded with Boostline H-Beam reinforced connecting rods and Mahle Motorsport forged pistons, and freshly rebuilt throughout with a comprehensive list of new components across the cylinder head, short block, rotating assembly, and sealing surfaces.

This Audi RS3 2.5 TFSI engine is not a standard used or refurbished unit. It has been rebuilt to a specification substantially above factory standard, incorporating motorsport-grade components that significantly increase mechanical strength, thermal tolerance, and reliability under sustained high-boost or modified operation. Whether the buyer’s intended use is road, track, or a tuned high-output build, this engine provides a foundation far superior to any stock-specification RS3 replacement.

The inclusion of competition-grade connecting rods and motorsport pistons takes this Audi RS3 2.5 TFSI engine beyond a factory restoration and into the realm of a genuine performance build. These components resolve the two most common high-power failure points in the RS3 platform, meaning the buyer inherits an engine that is not only freshly rebuilt but fundamentally stronger than a factory-specification unit in the areas that matter most.

Complete Package Includes:

• Complete Audi RS3 2.5 TFSI engine assembly, fully rebuilt
• Boostline H-Beam reinforced connecting rods
• Mahle Motorsport forged pistons
• Oil pan and valve cover included

Characteristics & Specification:

• Engine Code: DAZ
• Application: Audi RS3 (8V / 8Y)
• Configuration: 2.5-Litre Turbocharged Inline-5 (TFSI)
• Power Output: 294kW / 400hp
• Connecting Rods: Boostline H-Beam Reinforced
• Pistons: Mahle Motorsport Forged
• Cylinder Head: Complete Overhaul – New
• Timing Chain Set: New
• Bearings: New Throughout
• Piston Rings: New
• Crankshaft Seals: New
• Head Gasket: New
• Oil Pan: Included
• Valve Cover: Included
• Build Standard: Full Rebuild – Motorsport-Upgraded Specification

Vehicle Fitment – Compatible Models:

• Audi RS3 8V (Sportback/Saloon) – primary fitment, DAZ code
• Audi RS3 8Y – confirm engine code compatibility before purchase
• Other EA855 2.5 TFSI five-cylinder applications sharing the confirmed DAZ code – confirm before purchase

Why Choose These Audi RS3 2.5 TFSI Engine Components:

• Boostline H-Beam connecting rods replace the factory limiting component with a reinforced, high-strength design for high-boost, high-rpm durability
• Mahle Motorsport forged pistons deliver dimensional stability and superior thermal tolerance at elevated combustion pressures
• Complete cylinder head overhaul, new timing chain set, new bearings, new piston rings, new crankshaft seals, and new head gasket address every major wear item simultaneously
• Resolves the RS3’s two most common high-power failure points in a single rebuild
• Suitable foundation for Stage 2, Stage 3, and beyond builds where stock internals would be the limiting factor
• Competition-grade components used in professional motorsport applications globally, signalling a build intended for serious use

Key Features:

• 2.5-litre turbocharged inline-5 TFSI engine (DAZ)
• 294kW / 400hp output on a fully rebuilt motorsport-upgraded specification
• Boostline H-Beam rods and Mahle Motorsport forged pistons
• Complete cylinder head overhaul with new timing chain, bearings, rings, seals, and gasket
• Multiple International Engine of the Year Award-winning five-cylinder architecture

Ideal For:

• Audi RS3 owners requiring a rebuilt replacement engine following failure, bearing damage, or piston/rod failure in a high-power build
• RS3 tuning and performance builds targeting power outputs above stock where factory internals would be a reliability risk
• Track and time attack RS3 programmes requiring an engine built to sustain sustained high-load circuit use
• Audi specialist workshops sourcing a fully rebuilt, motorsport-upgraded RS3 engine for a customer build
• Buyers wanting a rebuild that addresses every known RS3 engine weakness simultaneously — head, timing, seals, bearings, rods, and pistons all addressed in one build
• Stage 2, Stage 3, and beyond RS3 builds where stock internals would be the limiting factor