GrimmSpeed Top Mount Intercooler Splitter
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GrimmSpeed Top Mount Intercooler Splitter - Subaru WRX STI (GDB) MY04-05
The factory splitter chokes airflow to your top mount intercooler, and GrimmSpeed built this replacement to fix exactly that. Designed and flow tested by GrimmSpeed, it opens up the intake path so your Subaru WRX STI TMIC finally gets the ambient air it needs to shed heat properly. SKU GRM093076.
This listing covers the Subaru WRX STI GDB MY04-05, suited to cars running either the OEM STI TMIC or a GrimmSpeed top mount intercooler.
Key Features
- Increases flow capacity to the TMIC by 70%
- Redesigned vanes for even airflow distribution across the core
- CAD designed and flow simulated before production
- CNC laser cut 5052 aluminium construction
- DuPont black powdercoat finish
- Custom EPDM rubber gasket included, pre-punched for rivets
- Three intercooler sprayer ports for water spray setups
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your model year and TMIC setup before ordering.
Not sure if this splitter suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Subaru | WRX STI | GDB | - |
Technical Specifications
| Spec | Value |
|---|---|
| Material | 5052 aluminium, 20 gauge, CNC laser cut |
| Finish | DuPont black powdercoat |
| Gasket | Custom EPDM rubber, pre-punched for split-shank rivets |
| Fastening | Flathead rivets (no welded joints) |
| Flow increase to TMIC | 70% increase in flow capacity vs OEM splitter |
| Intercooler sprayer ports | 3x ports included |
| Design/validation | CAD designed and flow simulation tested |
| Fitment | 2004-05 Subaru WRX STI (GDB), for use with GrimmSpeed or OEM STI TMIC |
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