Banks Power 02-05 Chevy 6.6L EC/CCLB Monster Exhaust System - SS Single Exhaust w/ Chrome Tip100 Percent stainless, not aluminized! Improves flow up to 176 Percent. Cat Back System with giant polished Chrome rolled edge tip. Muffler's expansion chamber cuts the drone. Physical fitment. Why consider a cheap, ill fitting aluminized exhaust? Banks 4 inch Monster Exhaust is made of rugged, long lasting 100 percent stainless steel. It fits better than the competition, because Monster Exhaust utilizes the factory hangers and maintains proper