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How to not get rasp?

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Old Sep 23, 2011 | 06:33 PM
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Default How to not get rasp?

I already have an SLP catback on my car right now and planning on buying some pacesetter long tubes, pacesetter ory, and an e-cutout.

I have been reading around here and sounds like I'm going to get horrible rasp. Is this true? If so, I'm not going to be happy at all because I cannot stand a raspy exhaust. So my question is, what are your suggestions for me to do so I don't end up with a raspy exhaust? Thanks in advance!
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Old Sep 23, 2011 | 06:47 PM
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dont get an ORY, use high flow cats like magnaflow.
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Old Sep 23, 2011 | 07:00 PM
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Eliminating rasp is a non-perfected science from what I understand. It has to do with air flow, resination, absorbtion of your exhaust, and temperature. My buddy removed his heat guards on his cats and removed his muffler completely on his T/A and it seemed to eliminate the majority of his rasp. I think by opening up your exhaust as much as possible, high flow cats, and having true duals will be your best chance of eliminating rasp. I would just go ahead and tell you to expect some regardless, kind of a nature of the beast.
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Old Sep 23, 2011 | 07:02 PM
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Cats will kill the rasp, yes. If you want to run an ory use a different merge. Try that first and it might be enough to do the trick, if not, some ppl put a bullet muffler in the i-pipe.
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Old Sep 23, 2011 | 09:42 PM
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A bullet muffler in the I-pipe is a cheap and easy solution. It does the trick if you run an ORP.
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Old Sep 23, 2011 | 10:34 PM
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If I was going to try to "kill" rasp I would go with a bullet or something in the I-pipe. The catalytic converters are just to expensive to a person thats on a budget. Also, a good merge could help with rasp and maybe pick up some power.

The rasp is a fighter.
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Old Sep 24, 2011 | 07:48 AM
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Wow thanks everyone for the quick replies I really appreciate it!

LS1WS6dreamer you hit it right on the head, I'm on a budget so high flow cats are out of the question.

I think I am going to go with a TSP ORY instead and use a bullet muffler. Here is another question that I feel dumb for asking, but what is an I-pipe? Haha, thanks again all!
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Old Sep 24, 2011 | 08:06 AM
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I-pipe = intermediate pipe

It is the pipe that runs after the merge, over the axle and into whatever else you have out back (muffler, etc).
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Old Sep 24, 2011 | 08:06 AM
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Originally Posted by torkls1
Wow thanks everyone for the quick replies I really appreciate it!

LS1WS6dreamer you hit it right on the head, I'm on a budget so high flow cats are out of the question.

I think I am going to go with a TSP ORY instead and use a bullet muffler. Here is another question that I feel dumb for asking, but what is an I-pipe? Haha, thanks again all!
The i-pipe is the pipe that connects the merge to the rear muffler section.

I had horrible rasp with an ORY. Saved up and had a customer TD set up made with cat's, love my exhaust....But on a budget a decent bullet "should" do the trick.
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Old Sep 24, 2011 | 08:19 AM
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Awesome thanks! So basically a bullet muffler in the i-pipe acts as a resonator? Also, do any of you have suggestions to what brand is a good bullet muffler?
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Old Sep 24, 2011 | 10:23 AM
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I think Magnaflow makes one and Borla has something, maybe dynomax. I also read somewhere about a power pack or something. At the top right of the Gen 3 external engine forum there is a button that says "search this thread."
I'm not being a smartass about the search, but I don't know much about the bullet mufflers. There is something posted about them everyday so with search you can read til ya get sick!

good luck
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Old Sep 24, 2011 | 10:40 AM
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Dynomax. A 4"x16" is all you need and it'll fit under the car in the I-pipe w/no problem.
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Old Sep 24, 2011 | 01:41 PM
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Thanks all, I think I will be going with a bullet dynomax and see how that works out.

Originally Posted by Bluestreak
Dynomax. A 4"x16" is all you need and it'll fit under the car in the I-pipe w/no problem.
Do you mean 4" shell diameter by 16" shell length, or 4" shell diameter by 16" overall length? Sorry for all the questions, but thanks for all your time everyone!
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Old Sep 24, 2011 | 03:17 PM
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Lol... You don't want rasp and you're going with a tsp y pipe.

Sub a flowmaster merge for that and you will be real close to eliminating your rasp... Add a bullet in the Ipipe and it should be virtually gone.
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Old Sep 24, 2011 | 06:11 PM
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Fix the issue, change out that terrible merge, you'll not only eliminate most, if not all of the rasp, and possibly gain a few hp to. If there is still some rasp toss on a bullet.

Bullet muffler at this point is just a band-aid imo.
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Old Sep 24, 2011 | 08:36 PM
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Dont get a Pacesetter ORY, have you seen those abominations? Those will cause more rasp than anything,
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Old Sep 24, 2011 | 08:40 PM
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Install Magnaflow catback. Done
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Old Sep 24, 2011 | 09:02 PM
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My magnaflow still has rasp... Because of the terrible kooks **** ory.

The muffler doesnt cause the rasp, it can increase or decrease it, but it is not the main culprit.
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Old Sep 24, 2011 | 09:17 PM
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who makes the lowest RASP in a ORY?
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Old Sep 24, 2011 | 09:24 PM
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Flowmaster merge.. Iirc stainless works makes a nice piece also but I believe its around 110$?

For a buy and bolt up.. Pretty sure arh uses a decent y, still not the quality of flowmaster merge however.
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