MagnaFlow Muffler Mag SS 7X7 20 4.00/4.0 Drivetrain>Differential Bushings The large diameter perforated core

The large diameter perforated core eliminates the flow restrictions of a louvered style core

measure the amount of load being placed on the engine

length and features a stainless steel outer sleeve

Ceros or XRS) and future 4-CORE applications

MagnaFlow Muffler Mag SS 7X7 20 4.00/4.0 Drivetrain>Differential Bushings The large diameter perforated coreMagnaFlow Performance mufflers are 100% stainless steel and lap joint welded for solid construction and rugged reliability even in the most extreme conditions. They feature a free flowing, straight through perforated stainless steel core; stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep tone. MagnaFlow Mufflers are packed tight with this acoustical material to ensure long life and no sound degradation over time.