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Twin turbo NNBS

Discussion in 'Performance & Fuel' started by 2k8z71, Mar 30, 2012.

  1. 2k8z71

    2k8z71 Rockstar 100 Posts

    Well I was surfin the net and came across this website: and apparently they make a twin turbo hybrid type system for the NNBS trucks that's 50 state emissions legal. Has anyone else heard of this? Wonder how many trucks they modded so far.

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