Description
The WSM High Performance Sleeve 60-520-02 delivers measurable horsepower gains through optimized port geometry—without requiring extensive case modifications or machine work. If you’re seeking reliable performance improvements that bolt into your existing build, this sleeve offers the efficiency gains you need at a practical price point. Stock-compatible installation means less downtime and more time on the track.
- MPN: 6052002
- Modified port configuration
- Increased horsepower output
- No case modifications
- Bolt-on installation
- Stock porting compatible






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