Pay in 4 interest-free payments of $125.00 Learn more
Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Level 4: +100 HP
Level 2 - 50 HP
This S&B intake increases airflow by 44
ensure your device firmware and EFI software are up to date
Level 2: +50 HP Over Stock
2024-25 Duramax L5P HPTuners ECM Send-In Unlock Service TCM Level 4: +100 HPUnlock the full potential of your 2024 2025 Duramax L5P with the HP Tuners E42 ECM Send In Unlock Service, designed specifically for using the HP Tuners VCM Suite software. This one time, send in upgrade service modifies your GM E42 ECM (L5P) to enable advanced tuning and diagnostics, giving you complete control over your vehicle's performance. Key Features: One Time ECM Upgrade: Send your E42 ECM to HP Tuners headquarters for a professional unlock
US$ 28.95
US$ 4000.00
US$ 139.00
US$ 15.00
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US$ 49.00
US$ 20.95
