Review on Flowmaster 43043 40 Muffler Aggressive by Ricky Gilbert

Classic Muscle Car Sound! The fit and finish is excellent and made in the USA! I used the Borla Pro XS on my Buick 455. They sounded fantastic when you were cruising or accelerating, but when idling they just sounded soft. These streams are exactly the sound I was looking for. I've spent hours listening to YouTube clips trying to pick one. From Magnaflow, Dynomax, Black Widow etc. Get them, you'll love them.