GrimmSpeed Header Collectors to Crossover Gasket Double Thick, Subaru EJ
The GrimmSpeed Header Collectors to Crossover Gasket Double Thick is the correct replacement seal for the header collector to crossover (double thickness) on EJ turbo applications. Replace any time this connection is opened during service, reusing a previously compressed gasket risks leaks after reassembly. This double-thickness version is for applications where standard gasket material is insufficient to fill the flange gap.
DETAILS
- Application: seals header collector to crossover (double thickness)
- High-temperature construction appropriate for application
- Replace any time the sealed connection is opened
- Engine: EJ turbo
- Fitment: All Subaru EJ turbo models
- Double thickness, for larger-than-standard flange gaps
Exhaust and intake gaskets experience significant thermal cycling, vibration, and fluid exposure. Each time a gasketed connection is opened, the gasket should be replaced, a previously compressed gasket does not return to its original thickness and may not seal correctly when retorqued. GrimmSpeed’s gaskets use materials appropriate for the thermal and chemical environment of the specific connection.
This is the correct specification for this connection on the EJ turbo engine.
What’s in the Box
- GrimmSpeed gasket
Why Choose GrimmSpeed
GrimmSpeed has been engineering performance parts for Subaru platforms from their Portland, Oregon facility since 2003. Everything they make is designed around real-world use, their engineers drive the same cars their customers drive, which means product decisions are made with genuine platform knowledge behind them. GrimmSpeed designs parts in-house, sources quality materials, and validates fitment on the actual application before release. The result is parts that install correctly the first time, perform as advertised, and hold up under the conditions Subaru owners actually subject their cars to. Whether it is a critical engine component or a cosmetic upgrade, the same attention to detail and fit quality applies across the catalog.
The RallySport Take
The correct replacement seal for this connection on All Subaru EJ turbo models applications. Fits All Subaru EJ turbo models.
Fitment
| Year | Make | Model | Notes |
|---|---|---|---|
| All | Subaru | Turbo Models | EJ20/EJ25 series |






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