Greetings 'Maro Heads... I just purchased a new 2012 45th Anniversary Edition 2SS. I am having the Flowmaster (cat-back) OUTLAW exhaust and a K&N Typhoon Cold Air Intake installed. The K&N website says the intake will add an additional 18Hp.. Does anyone know how much Hp the Flowmaster OUTLAW cat-back exhaust adds to the setup?

 

Don't believe the advertised numbers. You might pick up a couple hp at the most with that intake. As its just a catback, you might be pickup 10 rwhp.