Cobb LF Bypass Valve Rebuild Kit — Universal
The Cobb Cobb LF Bypass Valve Rebuild Kit is a rebuild kit for the Cobb LF Bypass Valve, providing replacement internals including the diaphragm, spring, and seals. Use when the bypass valve shows signs of wear — reduced response, inconsistent boost behavior, or audible air leaks from the valve body.
DETAILS
- Platform: Universal — All
- Replacement internals for existing Cobb valve or solenoid installation
- Use when original components show wear or at scheduled maintenance intervals
- Correct specification parts for Cobb bypass valve or solenoid
Why Choose Cobb Tuning
Cobb Tuning has been developing performance software and hardware for turbocharged enthusiast vehicles since 1999. Founded in Austin, Texas, Cobb built its reputation on the Accessport and expanded into a full catalog of hardware engineered to complement it. Every OTS map is developed in-house on real vehicles, and every hardware product is validated as part of a complete system — not sourced and sold in isolation. That integrated approach is why Cobb produces consistent, reliable results across the builds we see every day.
Fitment
| Year | Make | Model | Notes |
|---|---|---|---|
| Universal | — | All | Cobb LF Bypass Valve applications |





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