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Getting rid of rasp...

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Old Sep 16, 2006 | 01:29 AM
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Default Dual questions

Sorry for the length... but thanks for the help.

I got my LT headers and TSP ORY and Hooker catback a while ago(earlier this summer), and I like it, all except one thing. Right about 2200rpms to about 2600rpms it has a lot of rasp that I don't like if you're between like 1/4 and 3/4 throttle. If you're below the 1/4 it doesnt do it because the rpms never make it to 2200, and if you have it floored it goes through there so fast you don't really hear it and it never comes back down, so its fine. I've been thinking about a couple options for getting rid of it.

One was getting cats, but I decided I don't want to do that because I don't want it any quieter than I have it now. So thats a no.

I was also thinking about getting some duals, and I know a local place here that quoted me on a set of 2.5" pipes, X-pipe, and over the axle for about $575, depending on what mufflers I wanted to use. Plus the price of tips. I'm also worried about this one being too loud; I don't want it a whole lot louder than it is now. I would do that, but I don't know how much I could get for my ORY and Hooker and I don't want them just to be sitting around when I just payed over $600 total for a new exhaust to replace them. They are in very good condition, less than probably something like 3-4k miles(I only put them on this august I believe it was). The only thing that may be slightly wrong with them is I think some of the C claps might have been put on a bit too tight and it might be a slight pain for me to get them undone. So how much do you think I could get for those two combined on here or somewhere else?

The last option I was thinking about is something small that I don't even know if what I remember about it is right. I remember a while ago on here a guy was talking about the rasp his car was making. He said he took out the merge part in the Y-pipe and sanded down a lot of the little metal burrs on the edge and smoothed out where the two pipes came together and that helped. I don't know if I remember that right at all, or if it even really works, but it was just a thought. My y-pipe was a major pain to get on too, so I would like to avoid doing this one if possible, but I will if it will fix it.

So what do you think I should do? Get the duals and try to sell the ORY and Hooker catback on here? Or try getting the merge out and sanding it down?

Last edited by Speedmonster185; Sep 16, 2006 at 11:45 AM.
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Old Sep 16, 2006 | 04:34 AM
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Get the duals with two 1-chamber flowmasters. Sanding down pipes sounds like a pain in the ***. Duals will take the rasp out. They will make the car sound mean as hell at WOT. Loud and deep at idle. Good Luck
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Old Sep 16, 2006 | 05:56 AM
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I've got similar raspiness to what you described. I've got Kooks LTs, catted-y and the GMMG catback. I thought having duals would be more rasp? Isn't rasp caused by a lack of backpressure, or too much pipe for the flow at that rpm?
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Old Sep 16, 2006 | 10:43 AM
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Hey warbird, your car looks strangely familiar . It looks exactly like mine except for the rims .

Well, I like the sound of what you said all except for one thing. Loud. I love the "mean as hell at WOT" and the "deep at idle", but I don't want it really loud. There are a million cops around here and basically every day that I drive somewhere I end up sitting next to one at a stoplight or something. I don't really want any trouble. I don't want to risk it. Also just my personal preference, I don't want it really loud at idle, or really light acceleration. I like the sound level of the hooker, but it could be a little louder. Its so quiet that trucks and stuff around can be a lot louder, so I think I'm ok to get a little louder. If I could get some mufflers that weren't a ton louder than the Hooker, but are very deep, and also very loud at WOT, then I would do it. What do you think I could get for my ORY & Hooker?

(the guy has three mufflers in his shop and I think I remember he said Flowmaster and Magnaflow, but I ca't remember the third.)
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Old Sep 16, 2006 | 11:47 AM
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I've also been trying to figure out if I should get an X or an H... I like the power supposedly you get with an X, but it sounds to me like from what I've heard I would like the sound better from an H. Would there be any price difference?
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Old Sep 16, 2006 | 11:51 AM
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I put a single chamber Flowmaster on my TBSS with SW headers and ORY. It used to raspe like crazy with the Magnaflow glass-packed muff. But now itonly does it at about 2000-2200 RPMs at light throttle- it actually seems quieter at heavy throttle..
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Old Sep 16, 2006 | 12:02 PM
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I have Edelbrock stepped LT's, Edelbrock ORY.

I used to have the TSP Rumbler on it. It was very loud, and had the same rasp you talk about.

I changed to a Spintech catback with a Sportman street XL series muffler (344SC) and left the I-pipe from the rumbler in (with the Dynomax Bullet in it) and ALL rasp is gone. The car has a much deeper idle and cruise (very big block cruising at 2000 rpm) and screams when I open it in a very good way. I'm sure I lost a few peak HP with the chambered muffler but, it does feel a bit torquier.
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Old Sep 16, 2006 | 12:15 PM
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I think duals are going to be loud no matter how you slice 'em. My friend had 'em over the axle with Dynomax bullets and it was too loud, so he swapped them out and squeezed in a pair of Flowmaster 40's. It was still too loud, so he went back to a catback.
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Old Sep 16, 2006 | 01:46 PM
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A large majority of your rasp is coming from the merge at the y-pipe.
I went from Hooker headers/ORY-pipe to QTP headers/ORY-pipe and
eliminated 90% or the rasp.
The QTP y-pipe uses the flowmaster merge two 3" into one 4", then
necks bakc down to 3".

I'd suggest you get a Flowmaster y collector and have it weleded in
place of the merge on the Hooker y-pipe.
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Old Sep 16, 2006 | 01:50 PM
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you wanna hear rasp.. wait till you hear the new loudmouth they have for 5.0's on a car without cats.. Some people like that i guess.
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Old Sep 16, 2006 | 05:02 PM
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So there is no chance I could make the duals anywhere near as quiet as the Hooker? I don't need it to be as quiet, just not a ton louder is all. Are X's or H's louder? I know the H's are supposed to be deeper..
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Old Sep 16, 2006 | 09:06 PM
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My buddy had an H. It was loud. I don't think there's any way you're going to have duals that are as quiet as a Hooker.
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Old Sep 17, 2006 | 12:01 AM
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I don't need it to be as quiet... I just don't want it to be really loud. Like cop attracting loud. There are a million here where I live. I see literally at least 2-3 every 15 min. trip I make around here.

Last edited by Speedmonster185; Sep 17, 2006 at 10:31 AM.
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Old Sep 17, 2006 | 10:31 AM
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Default still have 3 questions I need answered....

Ok, so I still have 3 main questions here.

1. How much do you think I could get for my Hooker/TSP ORY w. less than probably 3-4k miles on them?

2. Is the any X/H pipe and muffler combination that would be anywhere near quiet enough for me? I don't need it to be as quiet as it now, I just need it not too be exteremly loud. Like sitting next to, or driving by a cop won't have a chance of getting me a ticket, since they ar ALL over here. Also, they are mostly just in town, so very light acceleration and idling is what matters most for not being overly loud. It can still be really loud at WOT ... and I would like it to be. I just want to seem all innocent in front of cops , but then once i get out in the country away from them...

3. Is an H or X right for me? I would like the extra power from an X, but I also want a deep tone to it, which so far sounds like an H to me... What kinds of power will the X/H make through the rpms compared to my ORY and Hooker now?

Thanks for all of your help to everyone that has helped any anyone esle who helps me .
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Old Sep 17, 2006 | 10:34 AM
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i have pacesetters, orp and a hooker exhaust and have no rasp.
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Old Sep 17, 2006 | 10:54 AM
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My duals are loud but not like loudmouth loud. It idles, cruizes deep ballsy tone but not loud. The only time its LOUD is when I do WOTs. No rasps on any rpms.
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Old Sep 17, 2006 | 11:01 AM
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So cops sitting next to you wouldn't pull you over then? What do you have for an X/H and mufflers?

I was looking at the Magnaflow mufflers like this: http://www.magnaflow.com/02product/s...ne=main&id=498 , but I have no idea how well it flows or what it sounds like or anything, but it looks like it would keep it a little quieter compared to the bullets. They also have an 18" and a 22" version of those too. What do you guys know about them?
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Old Sep 17, 2006 | 12:23 PM
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Originally Posted by Speedmonster185
So cops sitting next to you wouldn't pull you over then? What do you have for an X/H and mufflers?
No, cops wouldn't pull me over. I've past cops and sat on the light w/ a cop right beside me, didn't bother them at all. I have bassani X pipe w/ bassani muffler w/ SW longtubes.
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Old Sep 17, 2006 | 02:01 PM
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In my (limited) experience with my friend's experiment with duals, they weren't very loud just cruising around town. At 20% throttle they were maybe about as loud as my GMMG w/manifolds. At 50% throttle or more, they got way loud. Personally, I couldn't take it. My deal after 2 years with the GMMG is going quiet ... especially for winter, when it's cold and the windows are up ... I'm sending you a PM.
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