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Go Back   IWSTI.com: Subaru WRX STI Forums > IWSTI Engine & Drivetrain > 2.5 Liter/Litre Factory Motor > GR-Exhaust
Magnaflow CBE Magnaflow CBE


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Old 09-03-2008, 09:19 PM   #406
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Default Re: Magnaflow CBE
So guys, what should i do? Go with the magnaflow with a magnaflow resonator or go with the Harman Motive? Is the HM worth the extra money?


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Old 09-04-2008, 04:32 AM   #407
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Default Re: Magnaflow CBE
Get a Magnaflow and get a resonator welded in.
Save yourself few hundred bucks
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Old 09-04-2008, 04:33 AM   #408
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Default Re: Magnaflow CBE
+1 (MF Revision 2 FTW)
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Old 09-04-2008, 07:01 AM   #409
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Default Re: Magnaflow CBE
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Originally Posted by scorpokat3 View Post
I've been using the Magnaflow part #14419. It fits and works great as a resonator on the STi. Good part if you want to stay Magnaflow.



-Devin
How is your clearance with that 4" OD ? No vibration issues ?
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Old 09-04-2008, 09:58 AM   #410
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Default Re: Magnaflow CBE
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Originally Posted by zoth View Post
How is your clearance with that 4" OD ? No vibration issues ?
Works and fits great. Plenty of clearance and no rubbing.

-Devin
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Old 09-04-2008, 10:07 AM   #411
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Default Re: Magnaflow CBE
can you quantify the sound level difference? about the same? about 1/2?
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Old 09-06-2008, 01:45 PM   #412
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Default Re: Magnaflow CBE
I got the Rev 2 and after some adjustments the tips are absolutely even.

I do have a question for those that have a DP with their MF...

Do you guys have any issues with an exhaust leak where the DP meets up with the mid pipe?

I don't know if I should replace the gasket, double it up, or have a shop weld on a 3" flange instead of that 2.5" donut flange that is on there now.
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Old 09-06-2008, 02:57 PM   #413
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Default Re: Magnaflow CBE
I know about nothing about exhaust but for sure, I would like to go Cobb stage 2 on a 2009 STi. Does the Magnaflow "allows" me to go Stage 2 or I need the combination of let's say the Cobb downpipes and the Magnaflow catback?

I must say it may have been answered but I haven't read the 28 pages...
Last edited by CoOlSlY; 09-06-2008 at 03:10 PM.
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Old 09-06-2008, 03:08 PM   #414
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Default Re: Magnaflow CBE
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Originally Posted by Spaceman View Post
I got the Rev 2 and after some adjustments the tips are absolutely even.

I do have a question for those that have a DP with their MF...

Do you guys have any issues with an exhaust leak where the DP meets up with the mid pipe?

I don't know if I should replace the gasket, double it up, or have a shop weld on a 3" flange instead of that 2.5" donut flange that is on there now.
Yea, my V2 leaked pretty bad when i mated it to my Invidia DP. I had a flat flange welded on along with a few inches of 3 in SS pipe and no more leaky leaky.
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Old 09-06-2008, 04:34 PM   #415
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Default Re: Magnaflow CBE
Quote:
Originally Posted by CoOlSlY View Post
I know about nothing about exhaust but for sure, I would like to go Cobb stage 2 on a 2009 STi. Does the Magnaflow "allows" me to go Stage 2 or I need the combination of let's say the Cobb downpipes and the Magnaflow catback?

I must say it may have been answered but I haven't read the 28 pages...

For a perfect fit I would shop for a downpipe that mates to the factory catback (2.5")... There are plenty out there.

If you have to get a DP that doesn't go down to smaller flange then you can just get one welded on.
Last edited by LaW; 09-06-2008 at 05:02 PM.
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Old 09-06-2008, 04:47 PM   #416
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Default Re: Magnaflow CBE
Just get one welded....it takes like 30 min and 40 or so bucks.

I have never seen an aftermarket DP with a Donut flange btw.
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Old 09-06-2008, 05:04 PM   #417
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Default Re: Magnaflow CBE
Quote:
Originally Posted by TeknoWhore View Post
Just get one welded....it takes like 30 min and 40 or so bucks.

I have never seen an aftermarket DP with a Donut flange btw.

Your correct, not sure what I was thinking there. The donut is on the DP side I think and the stock catback is just a 2.5" flat flange so any DP that scales down to 2.5" will work fine, its just the mating up of a 3" flange to a 2.5" that can be tricky.

I edited my post. I never had a stock exhaust from day 1 on my 03 WRX (had a catback bought before I even took delivery) and havn't touched the STI exhaust yet...
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Old 09-06-2008, 05:09 PM   #418
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Default Re: Magnaflow CBE
Quote:
Originally Posted by spongebobnopants View Post
I ship everything to my work. Although mine might notice the elevated noise without that resonator. I also try to fund the mods from my paypal account.
I did get caught putting on a FMIC on my old car when she opened the garage door on me and said "I thought you were just changing the air filter?"
i spy a mkv gti hahaha. evoms intake?


but yah, ive heard tro8's car in person, its nice and subtle at idle, but sounds ill when he gets on it.
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Old 09-06-2008, 05:33 PM   #419
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Default Re: Magnaflow CBE
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Originally Posted by wrxlep View Post
So guys, what should i do? Go with the magnaflow with a magnaflow resonator or go with the Harman Motive? Is the HM worth the extra money?
im not running a magnaflow cbe OR a harman cbe, and let me tell you... no
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Old 09-06-2008, 05:33 PM   #420
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Default Re: Magnaflow CBE
Some sneak peeks that will show up on my updated page shortly.

Revision 1 tip alignment

Revision 2


No change to the tips at all (I checked). Everything was done with the mid pipe and the intake pipe to the muffler. The changes squared up the muffler to the back of the car and pulled the tips even.

note: left side, inboard tip is straight. the light makes it look like it's crooked.


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Last edited by Bownse; 09-17-2008 at 08:06 PM.
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