GrimmSpeed Top Mount Intercooler Splitter
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GrimmSpeed Top Mount Intercooler Splitter - Subaru WRX (GDA/GGA) MY04-05
Frustrated with the OEM splitter choking your top mount intercooler? GrimmSpeed built this splitter to fix exactly that, directing far more ambient air from the scoop straight into the core of your Subaru WRX's TMIC. It's a proper engineering fix rather than a stopgap, designed and flow tested in CAD before production.
This listing covers the Subaru WRX (GDA/GGA) from MY04-05, fitted with either a GrimmSpeed or OEM STI top mount intercooler.
Note: This splitter is intended for use with a larger STI or GrimmSpeed TMIC. Gains will be minimal if retaining the stock size intercooler.
Key Features
- Up to 70% increase in airflow to the TMIC core
- CNC laser cut 5052 aluminium construction
- Durable DuPont black powdercoat finish
- Custom EPDM rubber gasket included
- Three intercooler sprayer port provisions
- Rivet assembled for long term durability
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your model year and intercooler 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 | GDA/GGA | EJ205 |
Technical Specifications
| Spec | Value |
|---|---|
| Material | 5052 aluminium, CNC laser cut |
| Material Thickness | 20 gauge (approx. 0.9mm ) |
| Finish | DuPont black powdercoat (OEM style finish) |
| Gasket | Custom EPDM rubber, pre-punched for split-shank rivets |
| Fasteners | Flathead rivets (riveted, not welded) |
| Flow Increase | 70% increase in flow capacity to TMIC |
| Sprayer Ports | 3x intercooler sprayer ports |
| Design Process | CAD designed and flow simulation tested |
| Fitment Requirement | Requires GrimmSpeed or OEM STI top mount intercooler |
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