Looking for aftermarket parts to modify or upgrade your 1989 GMC K1500 with muffler? At Tunersports.com we carry a huge selection of the top name brand performance muffler parts and accessories for your K1500.
Whether you have a 1989 GMC K1500 in Sierra to Sierra SLX trim we have you covered. We have 3 muffler available to mod your K1500. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER 12198MagnaFlow 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 th... MagnaFlow Muffler Mag SS 14X5X8-3X2.5/2.5 C/D 1988-1993 GMC K1500 Sierra / Sierra SLE / Sierra SLX $155.43 |
 SHIPS FROM MANUFACTURER 13266MagnaFlow 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 wav... MagnaFlow Muffler Trb SS 4X9 18 2.5/2.5 1988-1993 GMC K1500 Sierra / Sierra SLE / Sierra SLX $153.08 |
 SHIPS FROM MANUFACTURER 14221MagnaFlow 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 th... MagnaFlow Muffler Mag SS 5X8 14 3/2.5 1988-1993 GMC K1500 Sierra / Sierra SLE / Sierra SLX $200.31 |