Flowmasters or Magnaflows for a v6? - Mustang Evolution

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Old 02-16-2012, 05:47 PM   #1
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Flowmasters or Magnaflows for a v6?

And would it hurt to take my cats off, or would I lose power?
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Old 02-16-2012, 05:58 PM   #2
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Flowmasters my vote .. and no it won't hurt nothing to cut off cats .. and I believe Ull gain by doing so

---------- Post added at 05:58 PM ---------- Previous post was at 05:56 PM ----------

Just don't get pipes bigger than 2.5
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Old 02-17-2012, 07:54 AM   #3
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Re: Flowmasters or Magnaflows for a v6?

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Flowmasters my vote .. and no it won't hurt nothing to cut off cats .. and I believe Ull gain by doing so

---------- Post added at 05:58 PM ---------- Previous post was at 05:56 PM ----------

Just don't get pipes bigger than 2.5
I concur! I would say flowmaster 40's or 50's anything else is a waste of money. Just my opinion though.
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Old 02-17-2012, 07:57 AM   #4
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The back two cats are on the mustang to reduce the sound and the gain is little It's more for loudness.
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Old 02-17-2012, 08:01 AM   #5
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Re: Flowmasters or Magnaflows for a v6?

I disagree with them, I have always used MagnaFlow, on all my cars and will continue to use MagnaFlow. I feel that Flowmasters are just for people that want to be the Loudest around. My Exhaust is without CATS, but if you do that, you will need to get a Tuner, cause you will get "Warnig Lights" inside your car and you will need a Tuner to turn them off.
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Old 02-17-2012, 08:22 AM   #6
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Re: Flowmasters or Magnaflows for a v6?

You don't need a tuner you can get c.e.l eliminators for the light at the exhaust shop
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Old 02-17-2012, 08:26 AM   #7
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Re: Flowmasters or Magnaflows for a v6?

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You don't need a tuner you can get c.e.l eliminators for the light at the exhaust shop
I did not know anything about those c.e.l eliminators.
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Old 02-17-2012, 09:05 AM   #8
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Re: Flowmasters or Magnaflows for a v6?

I didn't either till my boy eddie at the ex. shop told me about them its just a diff o2 sensor mind you though its just like a fake out to the e.c.u
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Old 02-17-2012, 10:34 AM   #9
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Flow master 40's I have em and sound great!
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Old 02-17-2012, 11:07 AM   #10
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Re: Flowmasters or Magnaflows for a v6?

What about the "dual exhaust conversion" I have seen it in the Ford Racing Catalog and from American Muscle.As well as a bunch of other places.I want the power increase,not the sound so much
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Old 02-17-2012, 12:44 PM   #11
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You won't really notice any gains as they will be minimal, unless of course you go fi.
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Old 02-19-2012, 11:36 AM   #12
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I cut my old stuff out and put two magnapacks on mine. They didn't sound too bad actually. I just knew I wanted that ridiculous single glasspack off of it. I know alot of people like the way they sound and they Arent bad sounding just not what I wanted. But it's all on what YOU want in the end. As long as your happy with your car, that's what counts
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Old 02-19-2012, 01:23 PM   #13
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Re: Flowmasters or Magnaflows for a v6?

Your best bet is to stick with a chambered muffler...flowmaster 40, 44, and 50's are all chambered. I believe Magnaflows are straight thru, which sounds good on v8's, but imo makes the v6's loud and annoying.

The gains from exhaust aren't going to be huge. Our cars don't respond to bolt ons like CAI's and exhaust as well as the 05+ cars.

Of course anytime you increase airflow and reduce restriction you'll see gains, just don't expect 20-50 hp gains as some manufacturers claim.

I would leave at least 2 of the cats on the car...the v6's sound too high pitched above 2500rpms without them.
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Old 02-19-2012, 01:26 PM   #14
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I agree. I retained my cats when I did mine. And yea the magnaflow I used was straight thru
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