Contour Enthusiasts Group Archives Forums Modifications Duratec Performance MSDS Header Question...

Hey there. MSDS headers on a 99' SVT... do the headers alone make the exhaust sound "raspy"? I really like the stock "smoothness"... it has a nice smooth, NON-raspy sound. I know that the cat's have a lot to do with that, but I am wondering if the headers make it raspy or not. Also... overall, looking for the performance that the headers give for sure, secondly, looking for a stock-like sound, just a bit louder, same smooth deep sound though. What do you guys suggest, and secondly... do any of you have any sound clips or any of this?... even the stock exhaust with MSDS headers vs. stock or whatever, that would be VERY helpful... all of the posts that I found in the search were very old and none of the links worked. Thanx guys!

When I put the headers on my car, the sound did get deeper and meaner, but not raspy or fart-can. I think that a quality cataback with good resonators can give you some more power without making the sound deteriorate in quality.

Yeah i think that the header's should not affect the overall rasp of your exhaust. It all depends on the cat-back you have. I beleive the main influences are the cat, as you suggested, and the resonators/mufflers your running. IIRC it's mainly the resonator though. Someone correct me if i'm wrong. Overall headers would be a nice mod, i think they give around 10-15 hp and would sound SWEET even with stock SVT exhaust. If you wanted it louder you could also look into an aftermarket cat-back system (but many will create rasp).

keep in mind that my exhaust was super smooth before hand so i had a great starting point.

headers made my exhaust a little louder for sure. a good loud, but louder non the less. a meaner sound if you will. there still is 0 rasp, but like i said the note isnt quite as smooth as it was.

if you arent running a good catback (with a resinator) you may see some rasp (cant say for sure). i have a magnaflow res. (18" long i think) and didnt get any rasp. even on near 0 degree F mornings.

is the performance worth it? hell yes.

I just checked, and the video I posted over a year ago is no good anymore. Some may remember it. I've got MSDS Headers and y-pipe, Bassani catback and a Magnaflow resonator. I think the sound is perfect, and wouldn't change anything about it. Before the resonator, it did have some rasp, but wasn't ricey rasp. Sounded more like a chainsaw if you ask me, and was REALLY loud. I wouldn't hold back from getting the headers, and if you think it has a little too much rasp, just have a resonator welded in and you're good to go.

Mark

Same exact setup, and I agree 100%. However, the silver on my car, makes the note sound so much better :-)

Originally posted by Y2KSVT:

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I just checked, and the video I posted over a year ago is no good anymore. Some may remember it. I've got MSDS Headers and y-pipe, Bassani catback and a Magnaflow resonator. I think the sound is perfect, and wouldn't change anything about it. Before the resonator, it did have some rasp, but wasn't ricey rasp. Sounded more like a chainsaw if you ask me, and was REALLY loud. I wouldn't hold back from getting the headers, and if you think it has a little too much rasp, just have a resonator welded in and you're good to go.

Mark

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If it were actually running Get any word from Chuck?

Originally posted by RTStabler51:

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Same exact setup, and I agree 100%. However, the silver on my car, makes the note sound so much better :-)

Originally posted by Y2KSVT:

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I just checked, and the video I posted over a year ago is no good anymore. Some may remember it. I've got MSDS Headers and y-pipe, Bassani catback and a Magnaflow resonator. I think the sound is perfect, and wouldn't change anything about it. Before the resonator, it did have some rasp, but wasn't ricey rasp. Sounded more like a chainsaw if you ask me, and was REALLY loud. I wouldn't hold back from getting the headers, and if you think it has a little too much rasp, just have a resonator welded in and you're good to go.

Mark

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Mark

LOL It RUNS just fine...it just can't move!

Should be working on it soon..

Originally posted by Y2KSVT:

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If it were actually running Get any word from Chuck?

Originally posted by RTStabler51:

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Same exact setup, and I agree 100%. However, the silver on my car, makes the note sound so much better :-)

Originally posted by Y2KSVT:

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I just checked, and the video I posted over a year ago is no good anymore. Some may remember it. I've got MSDS Headers and y-pipe, Bassani catback and a Magnaflow resonator. I think the sound is perfect, and wouldn't change anything about it. Before the resonator, it did have some rasp, but wasn't ricey rasp. Sounded more like a chainsaw if you ask me, and was REALLY loud. I wouldn't hold back from getting the headers, and if you think it has a little too much rasp, just have a resonator welded in and you're good to go.

Mark

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Mark

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Well I suppose my question can be answered here aswell. I have a full Tru-bendz SS 2.5 inch cat-back and Tru-bendz SS y-pipe. I also have the strait pipe, meaning no cat. But I have the stock manifolds on the car. I would like to put the MSDS headers on but I'm worried about the noise getting any louder than it already is. Anyone with similar setup would be most helpful. Thanks

With no cat and one muffler it'll be loud as hell. Either get a main cat, or resonators at the tail pipes to quieten it down after the headers go on.