CSF 7094 High-Performance Radiator for 08-21 Subaru WRX & STI/Impreza/Forester

Vehicle Fitment

• 2008-2014 Subaru Impreza WRX (Manual Transmission)
• 2008-2014 Subaru Impreza WRX STI (Manual Transmission)
• 2015-2021 Subaru WRX (Manual and CVT)
• 2015-2021 Subaru WRX STI (Manual Transmission)
• 2016-2018 Subaru Crosstrek (Manual Transmission)
• 2014-2018 Subaru Forester (Manual Transmission)

Fitment Notes

• Manual transmission required for most applications -- see fitment notes above for CVT exceptions
• Automatic transmission models require a separate external oil cooler
• Drop-in fit -- no modifications required
• Multi-Fit combo pipe and plug design -- interchangeable fitting included for compatibility across model years
• Supersedes CSF 7028 -- updated version covers broader year range
• Stock fans and shroud compatible
• Professional installation recommended

Features

• CSF Racing series high-performance aluminum radiator
• CSF exclusive B-Tube technology
• Dual liquid laminar flow design
• ~15% greater heat transfer surface area vs. standard O-tube
• Ultra-efficient 6.5mm multi-louvered fins -- wind-tunnel optimized
• 100% all-aluminum TIG-welded construction
• CNC machined mounting brackets
• Multi-Fit combo pipe and plug -- fits multiple model years
• True drop-in fit -- no modifications required
• Individually leak and pressure tested
• Black finish
• 2-year limited warranty

Specifications

• Part Number: 7094
• Series: CSF Racing
• Material: Military-grade aluminum
• Core Design: B-Tube with multi-louvered fins
• Fin Height: 6.5mm
• Style: Downflow
• Inlet Location: Center upper
• Outlet Location: Lower driver side
• Transmission Cooler: No (external cooler required for automatic)
• Finish: Black
• Supersedes: CSF 7028
• UPC: 00710353070949
• Warranty: 2-Year Limited

Included Components

• 1x CSF high-performance aluminum radiator (7094)
• Multi-Fit combo pipe and plug fitting
• Mounting hardware

Product Description

The CSF 7094 is a high-performance all-aluminum radiator for the 2008-2021 Subaru WRX and WRX STI, as well as the 2016-2018 Crosstrek and 2014-2018 Forester with manual transmissions. It supersedes the previous CSF 7028 and incorporates CSF's innovative Multi-Fit combo pipe and plug design -- an industry-first fitting system that includes both a pipe and plug in the box, making the radiator compatible across the GR/GV (2008-2014) and VA (2015-2021) Impreza WRX and STI generations without modification. The 2015-2021 WRX is compatible with both manual and CVT transmissions; all other applications require manual transmission.

At the core of the 7094 is CSF's exclusive B-Tube technology -- specially engineered aluminum tubes formed in a B shape and seam-brazed, increasing heat transfer surface area by approximately 15% over conventional O-shaped tubes while enabling dual liquid laminar flow through the core. Paired with precisely aligned 6.5mm multi-louvered fins optimized in CSF's wind tunnel, the result is significantly greater heat rejection than the OEM radiator in the same physical footprint. Construction is 100% TIG-welded aluminum with CNC machined mounting brackets. Each unit is individually leak and pressure tested before shipment. Drop-in installation with no modifications required. Backed by CSF's 2-year limited warranty.