Flowmaster 40 series on 03 GT?
#4
I have an 03 GT Convertible bone stock, and put those mufflers on and it sounded great up until 1900-2300 rpm. AT this range, the drone, to me, was unbearable. I don't know if a coupe would be as bad. I ran them for 30 minutes and had the shop put my stock mufflers back on. Maybe it's me and my old age. I do not have the money to try different systems, so it will stay stock for a while.
#6
I have heard that Flowmasters drone a lot but I did not not think it would be that bad. Where I live, most of my driving is at 60-70 mph which puts me in the worst place, rpm wise, for drone on my car. I heard that the Borla Grand Touring has no drone at all, but at close to 800 dollars for a cat back system, I'll never know.
#8
I have 4.10s and Flows, so for freeways Im just above the drone range.
I think the chambered mufflers will drone more than the straight through type of mufflers. Id check out a bunch of youtube clips and browse our sponsors for cat backs and read the reviews.
I think the chambered mufflers will drone more than the straight through type of mufflers. Id check out a bunch of youtube clips and browse our sponsors for cat backs and read the reviews.