2-hose turbo intake kit Alfa Romeo 156 2.4 JTD 20V 175 hp 939A1.000 FVMQ — REDOX

REDOX 2-hose silicone kit for the turbo intake circuit of the Alfa Romeo 156 2.4 JTD 20V 175 hp (chassis 932 facelift, 939A1.000 inline-5 2387 cc DOHC 20-valve Multijet Common Rail, 385 Nm, 2003-2006). The 5-cyl JTD is famous for its character but suffers from OEM rubber hoses that harden quickly under combined turbo heat and EGR/blow-by chemistry.

Why FVMQ is mandatory

On this Common Rail diesel, two combined stresses mandate a FVMQ fluorosilicone inner liner:

• Post-turbo charge air can peak at 180-200 °C
• EGR + PCV system constantly recycles combustion gases and oil blow-by vapours into intake

Standard VMQ softens and leaks under this dual stress. FVMQ shows Class A chemical resistance to aromatic and aliphatic hydrocarbons.

Technical construction

• FVMQ inner liner (Fluorosilicone)
• Multi-layer VMQ outer
• 4-ply polyester reinforcement (vs 3-ply standard)
• 5 mm wall
• -50/+200 °C continuous
• 65-75 Shore A hardness

Benefits vs OEM

On ageing 156 JTD, OEM hoses blister, leak and can collapse under intake vacuum — frequent cause of smoke, boost loss and fault codes. REDOX silicone with FVMQ and 4-ply reinforcement is a definitive solution.

Delivery

Kit supplied with W4 stainless clamps. Plug-and-play.