Universal Fit Muffler Walker 17891 Pro-Fit Exhaust Muffler - Auto Parts Walker 17897 Economy Pro-fit Universal Muffler System Aluminized steel construction for corrosion resistance and durability Universal Muffler - 18138 by WALKER USA on Spot welded bushings provide stability and system support Walker Exhaust 17897 application specs: Offset/Offset Muffler Configuration; 38 in. Overall Length; 7.75 in. x 3.25 in. Case Diameter; 24 in These mufflers are manufactured with 100% aluminized steel, and feature spot-welded bushings for greater stability. SoundFX Direct Fit Exhaust Muffler 2 Outlet (OD Universal mufflers may require modifications to complete installation