Audi S4 Parts & Accessories

Choose your Audi S4’s next induction upgrade, hose refresh or chassis project with Black Ops Auto Works. Compare APR intake systems for covered B8 and B9 cars, do88 hoses for the earlier 2.7L biturbo and KW V3 coilover applications. Brake-service options support a separate refresh tailored to the installed assemblies.

APR Intake Choices for B8 and B9

The APR selection distinguishes a B8 3.0T open carbon-fiber intake from B9 3.0T PEX and carbon-fiber systems. Compare the exact engine application, construction, appearance and supplied pieces rather than choosing by the 3.0T badge alone. A replacement intake filter is a service item for its named assembly, not a complete induction package.

do88 Hoses for Earlier S4 Projects

For specified 1999–2002 2.7L biturbo applications, do88 inlet, throttle-body and pressure-hose listings cover different sections of the air path. Choose the circuit being serviced and compare connections and contents with the installed layout. Earlier vacuum and crankcase-vent hose references have separate engine coverage and need their own application check.

KW V3 and Brake-Service Planning

The listed KW V3 package names covered B8 sedan applications without electronic damping control. Select the suspension approach for the actual factory equipment and plan clearance and alignment. Brembo rear disc-brake kit listings identify specific S4 years; choose each brake-service package around axle, caliper, rotor material and supplied pads or hardware.

Clutch and Flywheel Planning for Manual B8 Builds

The Clutch Masters FX850 twin-disc listing names covered B8 S4 3.0L applications with a steel flywheel. A separate steel-flywheel listing serves its own service or build plan. Compare the complete clutch package with a flywheel-only purchase so the friction system, release arrangement and supplied hardware match the actual manual gearbox.

Choose the clutch for the car’s intended use and builder-specified output, then review pedal characteristics, break-in and installation requirements with the shop. A manual clutch or flywheel listing does not establish compatibility with an S tronic transmission.

Choose Your Part

• Identify S4 generation, exact engine and factory damper equipment.
• Choose complete induction, a specific hose circuit, suspension or brake work.
• Compare system contents and generation-specific installation requirements.

Frequently Asked Questions

How should B8 and B9 APR intakes be compared?

Select the exact generation and engine first, then compare construction, finish, connections and complete kit contents.

Which S4 is named for the do88 2.7L hose listings?

The listings name specified 1999–2002 S4 2.7L biturbo applications. Select the correct inlet, throttle-body or pressure circuit.

Does the listed B8 KW V3 package cover electronic damping control?

The listing specifies an application without electronic damping control. Choose the suspension package for your actual factory equipment.

What should I compare in a rear disc-brake kit?

Compare exact year and brake coverage, rotor dimensions and material, included friction components and any separately required sensors or hardware.

Does an intake replacement filter fit every APR system?

No. Select the replacement filter for the named intake assembly and manufacturer application.

Related Collections

Compare intake systems and brake parts. Contact our team about your S4 induction or service project.