aFe MACHForce XP Exhausts Cat-Back SS-409 EXH CB GM Trucks 1500 09-12 V8 (blk tip) SPECIAL-ORDER - An ECU recalibration is

-     An ECU recalibration is required in order to ensure the EML is not illuminated

Designed to work with the stock calibration

RetraxONE MX - 07-21 Tundra CrwMx 5'6" w/ DeckRailSys w/o StkPkt w/o TrlStrgBxs

76% more theoretical holding power

aFe MACHForce XP Exhausts Cat-Back SS-409 EXH CB GM Trucks 1500 09-12 V8 (blk tip) SPECIAL-ORDER - An ECU recalibration isManufacturer Part # : 49 44016 B Market Description The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination of performance; fit; and value. All systems use factory mounting locations providing stability and