CSF 3076 2-Row B-Tube Radiator w/Filler Neck for 2002-2007 Subaru WRX/STI Manual

Vehicle Fitment

• 2002-2007 Subaru Impreza WRX/STI (GD chassis, manual transmission, AWD)
• 2004-2006 Subaru Baja (manual transmission, AWD)

Features

• 2-row, 42 mm thick B-Tube core for high cooling efficiency
• Dual laminar flow for ~15 % more heat dissipation vs standard tubes :contentReference[oaicite:6]{index=6}
• 6.5 mm multi-louvered fins optimized in wind-tunnel tests :contentReference[oaicite:7]{index=7}
• 100 % TIG-welded aluminum construction (tanks & core)
• CNC-machined mounting brackets; drop-in fit with OEM hoses & A/C :contentReference[oaicite:8]{index=8}
• Includes high-performance 1.4 bar aluminum radiator cap
• Mirror-polished finish for show-quality appearance
• Individually leak and pressure tested; 2-year limited warranty :contentReference[oaicite:9]{index=9}

Specifications

• Core: 2-row, 42 mm B-Tube; fins: 6.5 mm multi-louvered
• Material: 100 % aluminum; TIG-welded tanks & core
• Drivetrain: AWD only
• Transmission: Manual only; excludes automatic models
• Includes filler neck for OEM upper hose
• Performance gain: ~15 % greater cooling vs OEM :contentReference[oaicite:10]{index=10}
• Fitment confirmed 2002-2007; coverage beyond unconfirmed

Included Components

• 1x CSF 3076 radiator with filler neck
• 1x 1.4 bar radiator pressure cap
• Mounting brackets & hardware

Product Description

The CSF 3076 high-performance radiator features a robust 2-row, 42 mm B-Tube core designed for 2002-2007 Subaru Impreza WRX/STI and Baja with manual transmission and AWD. Its dual laminar flow B-Tube and 6.5 mm multi-louvered fins deliver approximately 15 % more heat dissipation than OEM units - ideal for high-boost and track applications :contentReference[oaicite:11]{index=11}.

Constructed with TIG-welded aluminum and CNC-machined brackets, the radiator installs as a direct OEM replacement with no modifications. It includes a high-performance 1.4 bar cap and filler neck for proper OEM hose connection, mirror-polished for show-quality appearance, and is individually tested with a 2-year warranty :contentReference[oaicite:12]{index=12}.

Specifically intended for manual AWD models, the CSF 3076 offers reliable cooling performance and durability under demanding conditions. Fitment confirmed through 2007; compatibility beyond that year is unconfirmed at the time of listing.