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Swapped out the Flowmaster for a Magnaflow!

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Old Jul 2, 2011 | 03:39 PM
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Talking Swapped out the Flowmaster for a Magnaflow!

I swapped out my flowmaster catback for a magnaflow catback. Wow, I couldn't be happier. The magnaflow isn't quite as loud as the flowmaster but the sound is deeper and smoother without all the drone of the flowmaster. I love it. Can't wait to order up a set of ARH an ory to go with it. I would suggest this to anyone who isn't happy with their flowmaster but wants a deep rumble.

Last edited by 94Z28-MSTGKLR; Jul 2, 2011 at 05:12 PM.
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Old Jul 2, 2011 | 04:52 PM
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Originally Posted by 94Z28-MSTGKLR
quiet as loud
i thought this was a bit funny

but yea I was very pleased with my magnaflows, of course I have a very different setup but magnaflows overall have an awesome tone to them. One of the best sounding mufflers for these cars imo.
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Old Jul 2, 2011 | 05:11 PM
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Originally Posted by TankTheTurtle
i thought this was a bit funny

but yea I was very pleased with my magnaflows, of course I have a very different setup but magnaflows overall have an awesome tone to them. One of the best sounding mufflers for these cars imo.
lol, just noticed it myself. Fixed...
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Old Jul 2, 2011 | 05:16 PM
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I have used Magnaflow on some of my other cars and have always been happy with how they sounded.
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Old Jul 3, 2011 | 07:04 AM
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I made that jump and hated it. Switched to something else in a few months, but its all in the ear of the beholder. Glad you like it.
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Old Jul 3, 2011 | 10:23 AM
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I had magnaflow cat back before getting true duals. i LOVED it. The sound just keeps getting better within a few months. The dude that posted before me jumped the gun. After the muffler "breaks in" the sound becomes more powerful sounding and louder. I had mine for over a year and it got louder and deeper with time. If you love it now, you will love it after break in and headers and a ORY. Just a strong suggestion, get a ypipe with a flowmaster merge (TSP ypipe). It will make the magnaflow catback sound much better with no cats. no rasp. also will make exhaust flow much more efficient and alittle more power.
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Old Jul 3, 2011 | 03:08 PM
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I just plan on running the ARH ory. It has a nice merge and its stainless and thats what I'm most concerned with.
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Old Jul 3, 2011 | 05:04 PM
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Originally Posted by 94Z28-MSTGKLR
I just plan on running the ARH ory. It has a nice merge and its stainless and thats what I'm most concerned with.
sorry to say thats a bad merge that dimple in the middle of the ypipe merge looks restrictive. not the worse, like pacesetters etc. but bad exhaust turbulance. the exhaust pulses will run right into eachother and you will have bad rasp with that setup using magnaflow catback unless you run cats. 4" Flowmaster merge smooths out the exhaust so you get better flow, sound, power. but to each his own. Im just suggesting base on personal experience changing my exhaust 8 times time to find the right ypipe setup before switching to true duals. In a way i want to go back to my old ypipe setup.

ARH ypipe


VS. qtp ypipe with 4" flowmaster merge

Last edited by 808z28camaro; Jul 3, 2011 at 05:10 PM.
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Old Jul 3, 2011 | 05:16 PM
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I have a flowmaster on the ls1, and a magnaflow on the 305, needless to say the 305 sounds a thousand times better with the magna compared to the ls1 with the flowmaster.

ALthough that 305 is almost out and ready to be replaced with a built 6.0/ls3!
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Old Jul 3, 2011 | 05:17 PM
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I've seen the crushed part your talking about before and someone posted up a picture of the inside of the pipe and the crushed part can't be seen inside. It doesn't effect it. If I can find it i'll post it up. But like I said, I'm more concerned with the fact that its stainless than anything else.
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Old Jul 3, 2011 | 05:40 PM
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cool. I rather have a good sounding car with the most hp potential. but then again ive never had the same exhaust setup for more than a few years. but to each his own.
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Old Jul 3, 2011 | 08:58 PM
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It's cool man, appreciate the replies and the pictures. I'll probably run dual cutouts on the y pipe anyway. This is my DD so it has to be very street friendly and durable.
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Old Jul 4, 2011 | 02:10 PM
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i fully understand you wanting the SS over the QTP one cause i noticed where you live, people in some places dont have to worry about snow and salted highways and therefore dont have to concern themselves as much with the rust factor, especially since you say its a DD and therefore there are times you will have to drive it in poor conditions hence the need for durability, sometimes other things factor into decisions made
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Old Jul 4, 2011 | 06:06 PM
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Originally Posted by 02silvaZ
i fully understand you wanting the SS over the QTP one cause i noticed where you live, people in some places dont have to worry about snow and salted highways and therefore dont have to concern themselves as much with the rust factor, especially since you say its a DD and therefore there are times you will have to drive it in poor conditions hence the need for durability, sometimes other things factor into decisions made
100% Agree
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Old Jul 4, 2011 | 10:51 PM
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I put on a Magnaflow catback, hate it, sounds like ****, and is too quiet. Wish I had my Hooker catback back.
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Old Jul 4, 2011 | 11:05 PM
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Originally Posted by 01ssreda4
I put on a Magnaflow catback, hate it, sounds like ****, and is too quiet. Wish I had my Hooker catback back.
With stock manifolds & Y or LT's & ORY?
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Old Jul 5, 2011 | 12:13 AM
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LT+ORY. Luckily for me I have a 4 inch cut-out. I may be biased though as I have run stupid loud exhausts for the pasts several years. But I still don't even think the tone is good. And nobody else that hears it does either.
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Old Jul 5, 2011 | 08:49 AM
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I've been following along at home with this but I have a question:

I always thought you'd need to use a Y-Pipe that was made by the same company as the headers. EG: ARH headers only fit ARH Y-Pipes.

Can I use the really nice looking QTP Y-Pipe with AHR headers?
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Old Jul 5, 2011 | 09:46 AM
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Originally Posted by Paul Bell
I've been following along at home with this but I have a question:

I always thought you'd need to use a Y-Pipe that was made by the same company as the headers. EG: ARH headers only fit ARH Y-Pipes.

Can I use the really nice looking QTP Y-Pipe with AHR headers?
This is true. Not all y-pipes will fit all headers. In the case of the flowmaster merge as discussed above though, you can just have that welded into any y-pipe afterwards, its what I did on my old car.

Back on topic though, congrats on the switch! I have run magnaflows on both my TAs. The only complaint that I can see people having is how quiet the exhaust is even with LT/ORY. But that is nothing a cut-out can't cure.
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Old Jul 20, 2011 | 04:17 PM
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Originally Posted by 01ssreda4
I put on a Magnaflow catback, hate it, sounds like ****, and is too quiet. Wish I had my Hooker catback back.
This... I have had both catbacks on my lt and oryp setup and to be honest, the factory catback was as loud as the magnaflow after broken in. The Hooker is way better sounding and not as raspy IMO...
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