MBRP 3in AL Single Side Exit Cat-Back | Chevy/GMC 1500 Silverado/Sierra 4.3L/5.3L (14) (S5080AL)MBRP 3in AL Single Side Exit Cat Back Exhaust 20142018 Chevrolet Silverado 1500 GMC Sierra 1500 4. 3L V6 5. 3L V8 Part #: S5080AL Overview The MBRP 3 inch AL Single Side Exit Cat Back Exhaust is designed to enhance the performance and sound of your Chevrolet Silverado 1500 or GMC Sierra 1500 equipped with a 4. 3L V6 or 5. 3L V8 engine. Crafted for enthusiasts who seek a combination of improved exhaust flow, aggressive sound, and reliable durability,