LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Best, quietest sound for my H/C 383 LT1 - Borla or Magnaflow?

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Old 10-29-2011, 12:24 AM
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Default Best, quietest sound for my H/C 383 LT1 - Borla or Magnaflow?

So my car has true duals on it right now that are so rediculously loud I can't stand it. They are dumped at the rear seats w/ bullet mufflers. My car is a 383 stroker w/ a wild cam, the cam lope is choppy and very loud and I want to quiet it down as much as possible while still having a really nice sound.

I've got Pacesetter LT headers, 3" ORY pipe, 3" electronic cutout, and will be going with either a Magnaflow 3" catback or a Borla adjustable 3" catback. The Borla has all the adjustment plates to make it quietest-loudest so that's good. And I know everyone loves the Magnaflow..

What do you think will be the best sound and quiet it down quite a lot for my H/C 383?
Old 10-29-2011, 12:36 AM
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I would go magnaflow, I liked mine.
Old 10-29-2011, 01:27 AM
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I have LT headers going through a single 3" SLP TOTL with a Magnaflow muffler and it's anything but quiet IMO. That being said I love the Magnaflow and wouldn't change a damn thing.
Old 10-29-2011, 01:31 AM
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magnaflow.... its very quiet but i like it
Old 10-29-2011, 01:40 AM
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One word for you.

Corsa. everything else is just cheap or sucks period.
Old 10-29-2011, 01:48 AM
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Corsa sucks $900 for the same exact catback with "corsa style" tips? and a slightly different sound?

They're all stainless, and they're all great. My main concern right now is volume and what the sound quality is going to be like. Exhaust on a bolt on car is a totally different ball game from a H/C car, with a stock or bolt on car you can actually hear the tone a lot more, with a H/C car it's just so loud you can barely tell the difference between systems. Just from personal experience.

I've got a brand new Magnaflow catback, and I've got a used Borla catback both sitting in my garage. So I'm just trying to pick the right one for my setup. I'll be running CME tips too...
Old 10-29-2011, 02:05 AM
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Originally Posted by Ballinonabudget
Corsa sucks $900 for the same exact catback with "corsa style" tips? and a slightly different sound?

They're all stainless, and they're all great. My main concern right now is volume and what the sound quality is going to be like. Exhaust on a bolt on car is a totally different ball game from a H/C car, with a stock or bolt on car you can actually hear the tone a lot more, with a H/C car it's just so loud you can barely tell the difference between systems. Just from personal experience.

I've got a brand new Magnaflow catback, and I've got a used Borla catback both sitting in my garage. So I'm just trying to pick the right one for my setup. I'll be running CME tips too...
i got my magnaflow its quiet,, specially after high rpms to me sounds like if it was on mute lol.. it came with flowmaster and that is way louder.. but what i got now sounds better..i got the stock manifolds,, with LTs should sound better
i also got the cme...
Old 10-29-2011, 02:09 AM
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My magnaflow was on a head cam car.. I wouldn't hesitate to dd it at all, very tame cruising around, opens up pretty good wot.
Old 10-29-2011, 02:33 AM
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Nice lemons. Yeah the Magnaflow is looking like the best bet, unless anyone knows of a quieter muffler or catback I could use that won't hurt performance.
Old 10-29-2011, 03:08 AM
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Iirc the hooker? Was supposed to be pretty darn quiet, like almost stock, but still flow pretty good.
Old 10-29-2011, 03:39 AM
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Borla Xr-1 muffler it quiet down my LT's Pacesseters on my H/C ls1

But then again you did mention ure true duals right?

idk if they make these in bullets..

but heres a dyno video clip...

http://www.youtube.com/watch?v=pdUnTDJ9YTU
Old 10-29-2011, 07:01 AM
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put your CAT back on
Old 10-29-2011, 06:36 PM
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Nope I'm switching to a full 3" catback and taking the dumped TD's off. So you like the Borla XR-1?

I'm just looking for literally the quietest muffler to use in my catback that won't choke off too much power. I really don't mind losing a little flow if it will substantially quiet it down, I'll be running a E-cutout anyway

Originally Posted by 09camarossls2
Borla Xr-1 muffler it quiet down my LT's Pacesseters on my H/C ls1

But then again you did mention ure true duals right?

idk if they make these in bullets..

but heres a dyno video clip...

http://www.youtube.com/watch?v=pdUnTDJ9YTU
Old 10-29-2011, 06:46 PM
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What about the SLP dual/dual muffler? Or a Dynomax muffler? Something super quiet because even on my car it won't be quiet anymore lol...
Old 10-29-2011, 06:50 PM
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I personally love my h/c with an adjustable borla with a e cutout in the slot. Stealthy quiet closed or wide open nasty. Best combination IMO.
Old 10-29-2011, 06:50 PM
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i've run the magnaflow, borla, and flowmaster on the lt1 and a corsa on the ls1.

by far my favorite sound was the corsa, and they are expensive.

I prefer the Borla on the lt1 with the smallest plate, that got a lot of compliments and no drone in the car which was most important. the only change I'm going to make next is to install a chambered component right at the ypipe so that i can get it just a tad mellower.
Old 10-29-2011, 08:51 PM
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I love the magnaflow on my LS car. Definitely equal quality to Corsa and much better sound
Old 10-29-2011, 09:27 PM
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Nice merim and gregrob

I guess what I'll do is just install the full catback and try each out. The muffler will swap out super easy since both just clamp in. Hopefully one of the two will be what I'm looking for, if not I can just try another muffler that's compatible with the catback...
Old 10-29-2011, 10:04 PM
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I have a Borla with an e-cut out, works great because with it fully closed, the car really quiets down, with the Borla open it's pretty loud
http://www.youtube.com/watch?v=jLLgU...er_profilepage
Old 10-29-2011, 10:33 PM
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Bizzatch what are the specs on your cam? or like a general idea like LE1, 2 ect so I can compare it to mine? My cam is lopey as hell, very similar to a CC306.


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