Universal Exhaust Back Box 4" Stainless Steel Jap Style 2"/51mm Inlet Weld On
Jap style Tip Sizes: 4" Round + 5" Round. Inlet: 2" / 51mm. However, the straight-through build gives a crisp, unrestricted sound. Inlet Sizes: From 1.75" up to 3". Built for enthusiasts who demand both form and function.