A4 (B6) There are 2 products.

Audi A4 B6 Silicone Hoses 1.8T 20V - Turbo K04 Compatible - Permanent Stock - 24h Express Delivery

REDOX silicone hoses for Audi A4 B6 are specifically engineered for A4 B6 models (2000-2005) with 1.8T 20V 163hp engines. Compatible with K04 turbo conversions from Audi S3 for upgrades up to 240hp. 4-5 ply VMQ reinforced construction, 0.2" wall thickness, temperature resistance -58°F to 356°F, turbo pressure 43 PSI guaranteed.

Immediate stock and fast shipping guaranteed: Our European warehouse permanently stocks all A4 B6 references. Intake hoses, turbo boost hoses, intercooler circuit available immediately. Orders before 5 PM ship same day via GLS, delivery 24-48h throughout Europe. Reinforced Audi parts packaging included.

Available Audi A4 B6 applications: 1.8T 20V engines (AVJ, BEX, BFB) 150-190hp, Quattro and FWD versions, compatible Stage 1-2 tuning, K04 S3 turbo adaptations, Avant wagon and sedan variants. Colors black, red, blue available.

Superior technical specifications: German quality VMQ silicone, temperature -58°F to 356°F continuous (peaks 392°F), pressure 43 PSI turbo standard (72 PSI reinforced versions), minimum 15-year lifespan, stainless clamps included or available separately.

A4 B6 pricing: Intake hose: $73 Turbo hose: $85 Complete kit: $210 Shipping: $11.50 (free over $170)

Audi A4 B6 FAQ - Frequently Asked Owner Questions

Do the hoses fit all A4 B6 1.8T models? Yes, compatible with all 1.8T 20V engines in A4 B6 (2000-2005): AVJ 150hp, BEX 190hp, BFB 163hp. Fits FWD and Quattro versions, sedan and Avant. Same compatibility for Seat Exeo based on A4 B6. For V6 or TDI engines, we have specific references available on request.

What's the difference from OEM Audi hoses? Our silicone hoses better resist turbo heat (-58°F to 356°F vs -22°F to 248°F OEM), maintain pressure without swelling (common B6 issue), 15-year lifespan vs 5-7 years VAG rubber, compatible with modern E10/E85 fuel, don't harden with age unlike originals known to crack on B6.

Do the hoses support S3 K04 turbo? Perfectly suited for K04 conversion! Our hoses withstand increased pressure (43 PSI continuous), higher K04 temperature, increased flow without restriction. Many customers with successful K04 swaps. 5-ply reinforced version available for tuning >250hp. FMIC compatible without modification.

How to solve common boost problems on A4 B6? Boost leaks are frequent on aging B6s. Our hoses eliminate: OEM hose deformation under pressure, invisible micro-cracks causing losses, loosening connections. Complete installation solves 90% of boost problems. Recommended: pressure test after installation, check N75 simultaneously.

Is installation complex on the B6? Installation accessible for skilled DIYer. Time: 1-2h complete kit. B6 challenges: access to hose behind alternator, connection under intake manifold. Tip: remove complete engine cover, work with warm engine. B6-specific instructions with photos included. Technical support available.

What maintenance maximizes lifespan on B6? Annual visual inspection recommended (check for oil traces). Retighten clamps after 600 miles break-in. External cleaning with soapy water possible. Compatible with all VAG coolants G12/G13. Resists engine oil in case of turbo leak. No special treatment required unlike OEM rubber.