MBRP's 4" 16-gauge aluminized steel mandrel bent down-pipe for 15'-16' 6.7L Powerstrokes offers improved heat retention & 20% better flow than the OE restrictive stock down-pipe. The lower restriction helps lowers EGT's, increases throttle response and provides power gains up to +21HP and +24 lbs/ft. of torque. The freeflow design has the added benefit of slightly deeper and more pronounced exhaust note. Built from heavy duty aluminized steel their Installer Series performance exhaust systems offer a value price without compromising quality. Unlike other diesel upgrades, this one is 50 state street legal & C.A.R.B. approved per EO # D-763-1. Installation is a breeze thanks precise bends and the two piece design.
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