blackz93

iTrader: (2)

The car my Magnaflow came off of...

DEFINITELY not quiet!

http://www.youtube.com/watch?v=GyHCyBGLiy0

Green3spd

iTrader: (7)

ok.. good lol

94lt1white_bird

iTrader: (3)

someone get stealth formula in here because i have a feeling thats a more than just a cc503 cam doesnt he have a LE2 setup on his car anyways...

i think you have a defective catback , because ask anyone on this thread that actually knows magnaflow is pretty much the quietest cat back end of story ....

blackz93

iTrader: (2)

It's a damn CC503 with a Magnaflow. Later on he went with the LE setup and true duals.

blackz93

iTrader: (2)

How can you say I don't know when... I HAVE THE DAMN THING?!

I can't help it if yours quiet. You have my soundclips and another one I posted of the red Formula at the track. It's NOT quiet. It literally scares people if I give it 1/2 throttle or more in traffic. It's probably ONE OF the louder cars around here.

94lt1white_bird

iTrader: (3)

well how come your the only one in the world whose magnaflow is loud either cuz it has holes or its not a magnaflow

why does everyone else on here say its quiet and everyone is prooving you wrong ummm...

cuz you are

Green3spd

iTrader: (7)

My car chopped very hard without a tune.. after tune it smoothed out alot..
I think a Magnaflow is a great catback. it very tamed and almost hear peircing at WOT..
Here's my clip BEFORE TUNE:

94lt1white_bird

iTrader: (3)

same with me it was pretty choppy without a tune but after your correct it tamed up alot but still you can tell the catback also does quiet it down ...

blackz93

iTrader: (2)

Damn, that's so quiet I can BARELY hear it!

blackz93

iTrader: (2)

There are 4 in this very thread that are loud. Not just mine.

ROWDYZ28

So I read the site every few days but rarely post,, but I have to chime in on this topic of discussion. To those saying Flowmaster is louder then the Magnaflow on a STOCK car is high on pot. Flowmaster themselves will even tell you the same. And to the OP providing video clips with the 847 vs the 503..no comparison dude. To post such videos is simply a waste of time and space. I have ran both on both a stock/bolt-on Z28 and a TA and the Flowmaster was a lot more raspy in sound at any and all RPM level.

blackz93

iTrader: (2)

I'm not the OP, so not sure if you're talking to me or not. I wasn't trying to compare cams. Just saying MY Magnaflow isn't quiet.

ROWDYZ28

Of course it's not going to be quiet with a GM 847 blowing out the rear end...LOL And maybe your exhaust is a pile and needs to be looked at.

Let's see some stock cars with both catbacks on...$100 say's every last one of them w/ the Flowmaster is louder.

blackz93

iTrader: (2)

Who gives a **** about stock!


There's no leaks in my exhaust. I'm not even sure how you two could think I would ******* mistake that for sound coming out the back.

94lt1white_bird

iTrader: (3)

your 100 percent correct flowmaster on a stock car is gonna be louder and im pretty sure it still apllies on a race car as well

Z-RATED94

iTrader: (6)

[QUOTE=94lt1white_bird;12698642]so i have a question all these cc503 videos i see on youtube and lt1 engine sound so much more cammed out than mine do

my mods are

of course cc503
forged brand new 355
pacesetter lt and ory
no cats
magnaflow catback

is it because im just goin through the magnaflow muffler and its choking the cam or something

Are you sure your valves are adjusted properly? Mine had more of a lope to it once they were set correctly compared to when they weren't. Also as mentioned, a higher idle speed will tame the lope. Big difference in mine between the 750rpm idle compared to the present 900.

zlicious94

iTrader: (1)

TRU DUALS FTW!

allenwesley

magnaflow is to quiet i thought and at wide open throttle i thought it was way to raspy! and the cut out sounded good at idle but the second i push on the throttle it was so raspy, and i thought it just sounded like **** so i decided wasn’t going to waste any more money on cat backs and cut outs and just went to true duals dump before the axle and ide never go back!

blackz93

iTrader: (2)

You guys with the quiet Magnaflows just don't have enough horsepower!

StealthFormula

iTrader: (35)

The video that was posted was when I had a cc503, LT's, ORY, Magnaflow catback. It was untuned at the time so the idle was at stock level. When tuned we bumped the idle up a tiny bit so it wouldn't stall out in reverse anymore. I have a vid or two of my car with an open cutout idling but that video is with the cutout closed.

I then ditched that cam for a 224/230 107lsa custom grind and LE2 heads and the Magnaflow tamed it down pretty well. I pulled it into the shop to have them fab up some TD's and when they were done and fired it up they were like "it's got a cam?" lol. Anyhow I have owned several different exhaust setups and the Magnaflow is the tamest I have owned (at idle and normal driving). However, when I would go WOT my friends would always comment how loud the car was and I would have people drive my car and I can attest it screamed at WOT from the outside. I could still clearly hear it chop at idle when I had the cc503 and IMO it sounded really good. Alot of it has to do with idle rpm and of course whether car has cats and what mufflers etc. etc.

Here's an inside the car vid with the windows up of when I had the cc503 and magnaflow, I think it's pretty loud but again at cruising speeds it was really tame. I have heard that Magnaflow mufflers tend to get a little louder over time...
http://www.youtube.com/watch?v=R0FtFVvlGmU