11-12 Duramax LML HSP Max Flow Bundle** 7 8 Week Build Time Normally** This kit will allow you and your engine to breathe easy. Featuring a mandrel bent 4 inch intake tube for massive air flow gains, with HSP's signature heat shield box eliminating unwanted hot air entering the cold air intake. For every 1 degree increase of intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece. This turbo mouthpiece will give you the ability to reroute

Color Touch Screen

some Mpg gain

(1) FP1116IAT_HD| Intake Air Temperature Sensor Bracket

denser air for optimal efficiency

2011-2012 – 90 HP & 200 lb/ft TQ (Redesigned tuning with huge improvements)

Each turbo actuator stroke is tested prior to shipping

SW #7: +130 HP

Removing the restriction in the factory downpipe results in lower EGT’s and increased performance

fuel enters the high pressure pumping chambers and exits under pressure to the fuel rails and fuel injectors

The Pusher HD 3" Cold Side Charge Tube with Throttle Valve Adapter replaces the unreliable OEM plastic charge tube with a precision-engineered

resulting in a transmission fluid leak or worse

Not available for sale in the state of California  Click here to read Emissions Notice