MagnaFlow Muffler Trb SS 4X9 18 2.5/2.5

MagnaFlow XL Mufflers use a unique combination of large diameter perforated tubing and strategically placed sound baffles to reduce unwanted resonance and help your engine create horsepower. The sound baffles tune the sound waves using calibrated tuning gate openings that allow portions of the waves to pass through. These tuned waves reflect off the back wall of the muffler and cancel out unwanted harsher sounds. The large diameter perforated core eliminates the flow restrictions of a louvered style core. A careful balance between perforation size/spacing and the baffle tuning gate make for a great 3 chamber performance muffler.This Part Fits: Year Make Model Submodel 2000-2001 Chevrolet S10 Base 2000-2001 Chevrolet S10 LS 2000-2001 Chevrolet S10 ZR2 2000 GMC Sonoma SL 2000 GMC Sonoma SLE 2000 GMC Sonoma SLS