How To Get Rid Of Rasp
08-26-2008, 05:05 PM
#4
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+1 on adding cats.
I don't know why some of us don't care for the rasp so much. It's part of what separates us from ricers. I'm proud of mine.
But adding cats and a new exhaust setup are the best ways.
I don't know why some of us don't care for the rasp so much. It's part of what separates us from ricers. I'm proud of mine.
But adding cats and a new exhaust setup are the best ways.
08-26-2008, 05:50 PM
#6
I have experimented with alot of different setups and the best way to tone down the rasp is tohave a muffler setup with some defelctive baffling in it. Most LS1 owners have straight through mufflers. These dont help at all.
The rasp is there, you just have to find a way to make it where you can least hear it. I have used the best merges you can buy. Thats not where it is. A good muffler is what you need. When you get a good muffler then you start worrying about how much hp it might be robbing.
The rasp is there, you just have to find a way to make it where you can least hear it. I have used the best merges you can buy. Thats not where it is. A good muffler is what you need. When you get a good muffler then you start worrying about how much hp it might be robbing.
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08-27-2008, 10:27 AM
#10
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Just the standard Magnaflow cat-back. It's not raspy and, in my opinion, not loud. Quiet at idle, you can hear it when you're on it, but it's not outrageous. It makes less noise than it used to with stock manifolds/cats and LM1.
Maybe that merge is an important part of the puzzle.
Maybe that merge is an important part of the puzzle.
08-27-2008, 12:02 PM
#11
I hope the flowmaster merge will do it for me, cant wait to get it on.
2000ramairformula -
I will let you know if this gets rid of my rasp or not once its installed (Sept. 5th), as long as I dont forget.
08-27-2008, 03:00 PM
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08-27-2008, 06:42 PM
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Well when I get my headers I am going to run the two longest (18in I beleive) bullets off of them then have a h pipe made into to super 44s that should be a pretty low sounding, no rasp set up.
08-27-2008, 08:04 PM
#19
I went from stock ws6 exhaust to magnaflow to corsa and now to slp dual/dual. The magnaflow was really raspy with ory and longtubes and the corsa was extremely raspy and mega loud with the same setup including a flowmaster merge. I stuck a borla xr1 in the ipipe and that took away all of the rasp with the corsa 
. I then put on an slp dual dual muffler and took off the borla from the ipipe and the car sounds just great now 
. With the ecutout open it is back to its corsa/magnaflow type loudness and raspiness and then I can kill that crap when I close the cutout thank god.
and the corsa was extremely raspy and mega loud with the same setup including a flowmaster merge. I stuck a borla xr1 in the ipipe and that took away all of the rasp with the corsa . I then put on an slp dual dual muffler and took off the borla from the ipipe and the car sounds just great now . With the ecutout open it is back to its corsa/magnaflow type loudness and raspiness and then I can kill that crap when I close the cutout thank god. 