MagnaFlow Muff GP 4 Dia 26inch 2.5/2.5 LC With 30-level adjustable

With 30-level adjustable

5-10 Duramax diesels

C20 Suburban 1986-1973

while its patented

but still have the retroreflector optics

MagnaFlow Muff GP 4 Dia 26inch 2.5/2.5 LC With 30-level adjustableThe MagnaFlow 4 in Round Glasspack Performance Exhaust Muffler 18146 enhances your ride with the deep, classic sound that glasspack mufflers are known for. The round muffler body features a free flowing reversible straight through 2. 5 in 2. 5 in diameter configuration and single stage packing with a satin finish. This weight optimized glasspack muffler is engineered to bring out the inner hot rod in your ride with plenty of volume and dyno proven