Silverline by ANSA is your leader in diesel performance exhaust. These Silverline aluminized exhaust systems are made from high-gauge sheet metal coated with an aluminum/silicon alloy coating. Silverline has 3 ratings for corrosion resistance and rates these aluminized systems at good. The "good" rating means that they resist heat scaling up to 1,250 degrees F. Silverline aluminized exhaust systems are direct-fit and include highly polished premium stainless tips with pre-welded hangers and hardware for an easy installation.