View Poll Results: Do you have Flowmaster american thunder
yes i ahve it and like it
4
21.05%
nope dont have it
6
31.58%
yes have it and dont like it
6
31.58%
dont care
3
15.79%
Voters: 19. You may not vote on this poll
Flowmaster American Thunder
I didn't necessarily not like it on my '02 WS6, it was just that I KNEW it was an inferior piece, I've seen evidence for it not to mention the overwhelming opinion of this site is that F-Body + Flowmaster = Divorce waiting to happen.
With headers it sounds pretty good, but I say just get another cat-back(Borla, LM, Hooker... etc) or go duals.
With headers it sounds pretty good, but I say just get another cat-back(Borla, LM, Hooker... etc) or go duals.
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I had a 80 series crossflow muffler on my third gen stroker also and it sounded good. I don't know about the flow but I'm told compared to other manufacturers it is not very good on an LS1.
I had one for about a month. on a stock car it sounds good. Its a well built system and it looks nice. When i put my mids and ORY on i couldnt take it, that stupid 80 series sounded like a dam tin can about 2-3K RPM. I would go with a magnaflow,hooker setup if your not wanting to spend a **** ton on the over rated borla.
I just took an 80 series FM off last week (came on car) and went with a Hooker 3" catback with a Hooker Aeroflow muffler and could feel a slight SOTP difference. UNC Charlotte (heart of NASCAR country) did a study on flow characteristics of mufflers (posted on LS1.com) and the FM 40 series (same as 80's) were quite restrictive. The Hooker tesed really well which is one reason I went with it (price another).
When I first got my car in 01, I was impatient and didn't research on exhaust. I had flowmaster muffers on several other vehicles, and thought I would get relatively the same sound, but I was wrong. I had the american thunder catback on the car along with an SLP y-pipe for about 8 months. I absolutely hated it. There was basically no volume increase with the exhaust and very little tone change. After being introduced to the concept of true duals, I never looked back. All it took was one ride in my friends Z with longtubes, true duals with one chambers dumped. My car got the same setup a few months later and I couldn't have been happier. However, I gave the catback to my uncle to put on his LT1 Z28. At the same time he put a 2.5" off road y pipe on it with a flowmaster y collector, and it sounds awesome. That catback sounds good on LT1s. I have only heard one sound clip of an LS1 car that sounded good with the A.T. flowmaster catback. It had longtubes, and a big cam in it.
http://media.putfile.com/flowmasterc...withmonstercam
http://media.putfile.com/flowmasterc...withmonstercam
I have a Flowmaster muffler w/ stock exhaust on my car. It sounds fine to me, though people here say Flowmasters are restrictive. I'm thinking of getting a Borla or Magnaflow catback but am still a bit undecided. I'm looking from both sound and performance wise. All I know is that I really don't want to have raspy exhaust. My moms 96 Z28 had a Flowmaster muffler, and yeah it was much louder than the one on my car.
Launching!
Joined: Apr 2006
Posts: 213
Likes: 0
From: Back to Newport News
When I first got my car in 01, I was impatient and didn't research on exhaust. I had flowmaster muffers on several other vehicles, and thought I would get relatively the same sound, but I was wrong. I had the american thunder catback on the car along with an SLP y-pipe for about 8 months. I absolutely hated it. There was basically no volume increase with the exhaust and very little tone change. After being introduced to the concept of true duals, I never looked back. All it took was one ride in my friends Z with longtubes, true duals with one chambers dumped. My car got the same setup a few months later and I couldn't have been happier. However, I gave the catback to my uncle to put on his LT1 Z28. At the same time he put a 2.5" off road y pipe on it with a flowmaster y collector, and it sounds awesome. That catback sounds good on LT1s. I have only heard one sound clip of an LS1 car that sounded good with the A.T. flowmaster catback. It had longtubes, and a big cam in it.
http://media.putfile.com/flowmasterc...withmonstercam
http://media.putfile.com/flowmasterc...withmonstercam