I think you pay a premium for the borla because the sound can be incredable. As far as flow difference between that and the magnaflow that I run I doubt there is very much. Atleast not enough to garnish the price differencies I have run into.

As far as the flowmaster well the sound is raspy which most don't like and they flow like ***. They use baffles to create a sound which most hate. They are very cheep and in my opinion just setup to the magnaflow. If you got the funds go borla. They do sound great.

 

the borla muffler I have on my car now seems to be welded to the existing cat back pipe. Is this how the new ones attach? I don't really like it, just seems...shoddy...

 

I thought they used slip on's?

hmm maybe someone who has the muffler will post up.

 

Heh, like i said, the PO of my car wasn't that keen on cars, so...Either way I'm replacing the whole thing and it can easily be cut away and used elsewhere. At least it isnt wasted.

 

Have had the stock, the Flowmaster (too raspy), and now just replaced my SS Magnaflow with Speedforce's new QuietFlow. Am changing the tip back to the big 5" oval Magnaflow tip, but I like the new Quietflow, and so does my neighbor who'd been hassleing me. W/ST2 headers, no cat and 3" all through the sound is definitely still that of a performance car but doesn't raise eyebrows, and actuallly makes car more enjoyable to drive. Mine was loud with the Magnaflow--at any rpm. It's all but straight thru for all intents. Anyone need a nice Magnaflow in polished stainless 3" in/out on center? PM me.

Dan

 

danger do you have a sound clip of yours?

 

Anyone?

 

I posted videos for you dude. You can hear the car pretty well in some of them.

 

Sorry i meant magnaflow. I would like to hear a clip with a magnaflow muffler.

 

what do you think I have dude? Once again those videos were posted for you.

 

Oh my bad. Sorry i thought those were with a fabspeed exhaust.

 

Yes its fabspeed piping modded by dave lindsey. with the magnaflow 4inch muffler.

 

Does anyone know the size of the stock cat-back piping? I want to go ahead and replace my cat with a straight pipe then throw a nice muffler on the end also, but I need to know what size the piping is so I can order a muffler. Thanks!

 

2 1/2 inches is the stock cat back piping. I just had a magnaflow 20" oval muffler installed with a 3" tip. The shop cut off the old muffler and welded the new one on. The exhaust is not much louder than stock, but it is not fully broken in yet. Turbo spoolup seems to be a tad sooner. I would next time go for a slightly larger tip, perhaps 3 1/2 inches, I was trying to avoid the ricer look, but my tip is the smallest possible you would want on our cars. I would Ideally want a nice polished oval that is larger than the stock part.
My muffler project cost about $300 and any muffler shop can do this.

 

You didn't state the intended use for the car, so the system could vary? Under the assumption it is for the street, I would "not" get the Flowmaster 40. As some people said, it's to raspy and "way" loud for everyday street driving. You will get looked at by cops, let alone to me it sounds ricey. Just horrible. I then installed a Magnaflow Muffler Polished SS with a 5 inch tip from Lindsey Racing. The 5 inch tip to me looks bad-*** too! For me, this system isn't obnoxious at all and sounds great under WOT. I would highly recommend it. And by the way, I didn't have a cat on too.

Just my two cents.