|LMM 6.6L Duramax
Part Number: 2001030
- Delivers up to 30-40psi exhaust backpressure
- Electronically closes off turbocharger vanes to provide engine braking
- Helps maintain speeds on descents and curves
- Better control of your truck and load.
- Different modes including automatic downshifting keeping engine rpm and engine retarding force high
- Integrated with the cruise control to automatically accelerate and decelerate to maintain vehicle speed
- Engine warm-up feature
- Easily installs by plugging into existing factory ports
- Switch mounted on the dash
- 12-Month Warranty
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