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they drastically reduce the amount of heat available to the engine and typically require tuning or don't work well in cold climates
They're also designed to accept common rail or 12V replacement bearings
LMM & LML Duramax Diesel engines endure
the grid heater is moved to a pre-plenum inlet position and out of the turning radius into the head
1999-2003 Powerstroke 7.3L 4" Turbo Back Exhaust w/ Muffler (421110) 2001 - 2004 GM Tools they drastically reduce the amount1999 2003 Powerstroke 7. 3L 4" Turbo Back Exhaust w Muffler (421110) Constructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Flo~Pro system. For powerhouse performance, Flo~Pro delivers horsepower you can hear!