I'm exhausted with researching Gibson vs FlowMaster 44 vs 50

jediwebdude · 2013-02-07T18:55:39+00:00

** UPDATE ** See post #18 to see how this ends and my comparison. I have a V8 '07. I currently have the Gibson Catback installed. No resonators. The sleeved attachment w/ U bracket system provided by Gibson doesn't work when off-roading (everything keeps coming apart). So I was going to have the sleeved pieces welded together tomorrow. But I'm not exactly pleased with the Gibson. In low idle/RPMs, it sounds great. When traveling at highway speeds, the drone is very tolerable. My problem is when I hit high RPMs, the sound is replaced by a horrible WOOSH sound. So I want something that handles high RPMs better. Talked with the muffler shop today that will be doing the work. They carry the FlowMaster 40, 50, and 70 series mufflers. I realize the 70 would be too quiet, so it is not in consideration. So my question is this: I realize the 40 is louder than the Gibson. What about the 50? Louder or quieter than the Gibson? Yes, yes, yes...I've searched. Those of you who want to direct me to LMGTFY, don't bother. I've watched many videos to try to answer my question, but to no avail. People use different cameras with a wide range of audio capture electronics, placed at different distances, in different wind conditions, etc...so a true comparison cannot be achieved via online listening. A ballpark estimate can, but not a solid conclusion. I am hoping someone on here has actually heard these in-person...live...and noted the difference. I will record the Gibson tonight using HD DSLR with external mic, and whatever I end up with tomorrow using same equipment in same position. Thus, I can provide benefit to someone in the future. For now, I need to benefit.

Thread starter jediwebdude
Start date Feb 7, 2013

jaybird93000

New member

Feb 8, 2013

Casper421 said:
I did something similar on my lifted Titan; put a blind flange on so I could have either my flowmaster 50's or straight pipes. Best part was that the outlet was right under the front passenger door at car level so when I downshifted, traffic got an ear full!

they make a contraption called a butterfly valve especially for this. My buddy with the Camaro just got two put in, so that he can be "sound legal" when the 5-0 comes around, but straight piped whenever he wants to wake the neighborhood. Very cool system, and works remotely.