Originally Posted by kctoothdr
Does anyone have any experience with the American Racing headers & exhaust for the 5.7 L? American Racing claims a 30 HP gain when using their exhaust (headers to tailpipes) without a tune. Is this a legit claim?
I'm considering this upgrade for my 2015 High Altitude but worried about drone. Many posts in this forum recommend corsa cat back upgrades for drone control. Is it possible to mate AR's headers and high flow cats with a corsa syatem?
American Racing Headers: Jeep Grand Cherokee 5.7 L 2011 - 2016
This system is available in three different pipe diameters. Can someone she'd some light on the differences? Thanks all.
30hp is a tall order but not completely out of reach. I am a professional tuner have have done plenty 5.7 testing on our dyno. The best results I have seen were using SRT8 manifolds and crossover pipes on a 5.7 WK but I do know american racing makes a nice product. I also would not put any exhaust other then a corsa on my jeep other then stock.. I would be happy with 20WHP from that system speaking from previous experience. If you are looking for a bit more then that I would suggest a heads/cam upgrade or forced induction since the hp per dollar ratio is greater even though a bit larger investment is required.
I would look into SRT8 manifold compatibility/differences first since you will not get the added sound while retaining a stock style header.