13-16 Duramax LML HSP Max Flow Bundle** 3 4 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

Filter cartridges and elements are consumable product - warranty covers workmanship only

We remove the leak prone factory 'flare-nut' connection in the factory hard feed line

Upgraded monitoring capabilities

Vehicle Specific Features

Tuner or programmer required to bypass VGT functions and codes

maximum torque is available to the rear wheels

75-3| Pusher Silicone Reducer

save time and money with the BMP cat filter adapter

00 Core charge applies

it’s recommended that the 3223 Boost Line Kit (see below) is purchased as it contains additional compression fittings to simplify the installation process

Updateable

This kit requires custom transmission tuning or an additional module to command higher line pressure