Flowmaster’s popular Outlaw race mufflers are a great solution for race classes requiring mufflers but having no set sound reduction rules. We are proud to introduce a number of new stainless steel additions to this popular line-up. Part numbers include: 815435 / 815435S – 3.50” in/out, 4.50” diameter, 10.00” /6.00” case length 815440 / 815440S – 4.50” x […]