This 304 Stainless steel muffler features a 4" outlet diameter Hi-power style tip with high quality burn titanium coating at the end of the tip The muffler is made from 304 Stainless steel that are beautifully tig welded together. Back purge tig welding is used to keep the welds super clean, and ensure proper penetration and weld strength. The whole muffler is finished in polish stainless steel with our 1320 logo welded on the muffler body. The compact round body design is perfect for installation in tight spaces and also offers a 5+lbs weight reduction over larger oval style or oem mufflers.