Why do so many people dislike Flowmaster?
08-20-2004, 06:36 PM
#32
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Im running 30series flows on my truck and nova. Just to see if they where hurting the nova, i pulled the exhaust off at the track. The only thing i picked up was mph. It went from 130.7 to 130.9 
. Doesnt look like the hurt hp that much.
. Doesnt look like the hurt hp that much.
08-20-2004, 11:56 PM
#35
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Originally Posted by BLK6.0HD
Im running 30series flows on my truck and nova. Just to see if they where hurting the nova, i pulled the exhaust off at the track. The only thing i picked up was mph. It went from 130.7 to 130.9 . Doesnt look like the hurt hp that much.
. Doesnt look like the hurt hp that much.I am running dual 40 series, and when I uncap the exhaust I only picked up 1 tenth of a sec. and 2 mph.
not much to worry about unless I was really serious about getting every once out.
08-21-2004, 12:12 AM
#36
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I know when I got rid of my single in/dual out Flow40 and put the Hooker Aero Chambers on, I lost about a pound and a half of boost. That tells me those Hookers flow a LOT better than the Flow40.
08-21-2004, 12:30 AM
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As much as I loved the sound of two chamber Flows on my departed 69 Z/28, all the data I found says that all of the street Flowmaster mufflers do not flow as well as XR1's or Aerochambers. I put an Aerochamber on my 99 OBS Tahoe.
08-21-2004, 11:01 AM
#39
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I have a 2000 Yukon XL w/ a 5.3L V-8. What should I use for the exhaust system. I have been told I can not put duals due to the location of the spare tire & gas tank. Does anyone have any suggestions.
08-21-2004, 11:06 AM
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Almost all the tests and charts I have seen are subjective and without detail. You can find comparisons and make them say what you want.
I have Flows on my Cheyenne--
Magnflows on my Chevelle--
Dynomax's on my Suburban--
I like the Flows on my 502 and would have them on my Chevelle but will be going back to 3-1/2" open tube dynomax race mufflers---magnaflows don't flow well enough and I could tell a difference.
I have Flows on my Cheyenne--
Magnflows on my Chevelle--
Dynomax's on my Suburban--
I like the Flows on my 502 and would have them on my Chevelle but will be going back to 3-1/2" open tube dynomax race mufflers---magnaflows don't flow well enough and I could tell a difference.