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Magnaflow Catback

This is a discussion on Magnaflow Catback within the External Engine forums, part of the LSx Technical Help Section category; Will a magnaflow catback on a completely stock car be too quite and similar to the stock sound? I have ...

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    Magnaflow Catback

    Will a magnaflow catback on a completely stock car be too quite and similar to the stock sound? I have looked on ls1sounds and youtube but can't exactly tell how loud it will really be.

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    I have just what you need: Catback install with pics and vid Magnaflow P/N 16723 on an otherwise stock LS1, manifolds and Y. I can't remember if I posted the before vid in this thread or not. My camera is not the greatest, but you can certainly tell the difference.

    ------------------------------------------------

    Yes -- it has before and after.

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    None Shall Pass Knight's Avatar
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    Ask Frank 99ws6. If I remember right, he put that on his car and it sounded almost exactly like stock. He was very unhappy. Not totally positive that was the brand though. I know I didn't care for the sound when I heard it either. Plus the coinage he spent and really didn't gain anything. I'm sure others will comment on it as well, good or bad.

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    Senior Member karpetcm's Avatar
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    ive had it in the past catback magnaflow with stock everything else and then with headers. I have to admit it was very quite stock everything else just louder at WOT, even with headers, no cats it was still to quite for me and had to put on a exhaust cut out which solved that problem quickly, lol. Good quality catback and i had no issues with it.
    Last edited by karpetcm; 05-05-2010 at 07:07 PM.

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    Member blackbird0230's Avatar
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    Agree that it sound like stock but when you drive around it's deeper in the 2000 and up range

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    jeff thanks for the clip that made me decide against it but now does anyone have other suggestions? i want to just buy the muffler i know a guy that will do all of the piping alot cheaper than buying a 4 or 500 dollar system.

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    Quote Originally Posted by davidz28 View Post
    jeff thanks for the clip that made me decide against it but now does anyone have other suggestions? i want to just buy the muffler i know a guy that will do all of the piping alot cheaper than buying a 4 or 500 dollar system.

    Exhaust is purely a matter of taste. Let us know what you end up doing and hope you achieve the sound you are seeking.

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    Member TRANS-DAD's Avatar
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    If it's a stock ls1 & you still have cat's on & just want a cheap good sound , have your muffler friend just gutt the stock muffler!.........will sound good 4 cheap!! Really!!

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    Member TRANS-DAD's Avatar
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    Oh & I also have the magnaflo quad tip cat back w/ kooks no cat's......And I think it's a little too quiet for my taste....but it's not my daily driver! lol!

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    Junior Member SH1ZN1T's Avatar
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    Have you checked out the Hooker cat-back system?

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    Quote Originally Posted by SH1ZN1T View Post
    Have you checked out the Hooker cat-back system?
    No i have not. you used it?

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    Member blackbird0230's Avatar
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    I would like to hear cherry bombs. I've never heard of them on an ls1 tho.

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    Senior Member karpetcm's Avatar
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    This is my car with the hooker muffler, exhaust cut out and no cats. It sounded better with the cats on the car and a bit too quite without the cutout and the cats.


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    Member 98Hardtop's Avatar
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    It sounds a tad louder than stock almost to the point where some may not even know it isn't stock. It is louder when you get on it. I love mine and it is awesome with the cutout open.

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    1998 Z/28 Hardtop A4 | Y2K wheels | SLP Lid | Magnaflow catback |cutout | Hotchkis LCA'S/PHB | BMR TA and D/S Loop| Tuned by Frost....300rwhp/308rwtq

    97 Cobra- bolt ons | full exhaust| 4.30's| suspension | SCT tune- sold!

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    Slow'er'Ass Mr. Luos's Avatar
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    I will not use anything but Magnaflow on my cars ever again.

    It is fairly tame, but the sound is the best you can get....at least to me.
    2008 Trailblazer SS
    Yank PTB3600, Kooks 1 7/8" LT's, 4" intake, E-fans, Magnaflow, Sonnax kit, tranny cooler, tune.
    Lowered, HID's, tinted.

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    Quote Originally Posted by Mr. Luos View Post
    I will not use anything but Magnaflow on my cars ever again.

    It is fairly tame, but the sound is the best you can get....at least to me.
    i agree totally, sounds really sweet with headers and ory

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    None Shall Pass Knight's Avatar
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    I run BBK LTs with ORY - no cats and a Borla on mine - love the sound. But to each his own.

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    what about the LM2 on stock manifolds and y?

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    Member 01ssSLP's Avatar
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    I have to Magnaflow quad tips with LT's and cats on my car. Im not 100% happy with the sound. I dont remember who said it on here but once you get around 2500 rpms it opens up with a nice sound.

  20. #20
    Magnaflow is the best sounding exhaust. Some people tell me its loud, some say its quiet. I say its in the middle

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