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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 11-15-2016, 05:41 PM   #1
Ghetto Pistachio
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X-Pipe 0n e46 330ci

I'll be quick. I wan to put in an x-pipe but i'm new to car exhaust so I want to know if there is any specific place it goes? And what pipe would I need? Anything else needed to install? I would like to avoid welding if that is possible too.
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Old 11-15-2016, 05:50 PM   #2
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You don't want to get into the math that tells you the specific place it goes for your car. But you can put it somewhere in the beginning of the mid-section. Will probably have to be custom and welded due to the width apart the current pipes are.

2" custom x-pipe unless you can take measurements and see about the generic ones on ebay or locally?
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Old 11-15-2016, 08:29 PM   #3
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Magnaflow makes a very nice free flowing X-Pipe performance muffler that I've put several guys into over the last 5 years. They all said it performed perfectly.



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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.
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Old 11-15-2016, 08:32 PM   #4
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How bout replacing the rear resonator with an X-pipe? Asking for myself as well...
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Old 11-16-2016, 12:41 AM   #5
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Had mine placed here:

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Old 11-16-2016, 02:09 AM   #6
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^ Interesting place to put the x-pipe. Why did you put it there and what was the result?
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Old 11-16-2016, 02:20 AM   #7
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^ Interesting place to put the x-pipe. Why did you put it there and what was the result?
I was installing an AEM a/f wideband gauge and needed a place to put the sensor, in order to gather samples from both cylinder banks as close to the engine as possible.
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Old 11-16-2016, 08:39 AM   #8
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I was installing an AEM a/f wideband gauge and needed a place to put the sensor, in order to gather samples from both cylinder banks as close to the engine as possible.
^This I can understand as a reason to add an X-pipe, but otherwise......why?

Given that it has to be welded in, seems like a lot of effort for little/no gain.
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Old 11-16-2016, 12:48 PM   #9
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I have headers and a muffler delete. I placed a MagnaFlow 18365 ( I think that's the part number) where the muffler delete took place ( so where the oem muffler would be) and It is a xpipe muffler

I'll take a sound clip later today probably

Last edited by asianisafish; 11-16-2016 at 12:49 PM.
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Old 11-16-2016, 01:06 PM   #10
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I was installing an AEM a/f wideband gauge and needed a place to put the sensor, in order to gather samples from both cylinder banks as close to the engine as possible.
Did it change the tone of the exhaust at all?

Quote:
Originally Posted by asianisafish View Post
I have headers and a muffler delete. I placed a MagnaFlow 18365 ( I think that's the part number) where the muffler delete took place ( so where the oem muffler would be) and It is a xpipe muffler

I'll take a sound clip later today probably
I'm thinking of adding a magnaflow 12468 in place of the middle muffler to hopefully lower some drone and add a lower tone to my current exhaust setup. Pics and video would be great.

Last edited by generalvp; 11-16-2016 at 01:07 PM.
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Old 11-16-2016, 02:48 PM   #11
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Originally Posted by Rob43 View Post
Magnaflow makes a very nice free flowing X-Pipe performance muffler that I've put several guys into over the last 5 years. They all said it performed perfectly.


Rob43

Here's what I came up with, it worked out very well.

http://forum.e46fanatics.com/showthread.php?t=928024



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SUMMIT POINT WV 1:24:229 SCCA
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

I BUILD SUSPENSIONS (Consult) FROM MILD TO WILD FOR RWD & Xi E46's
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I Know How To Fix The Rear "Bouncing" Problem On Your Cheap Coilovers Like: Jom RL FK SE & RK.
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Old 11-16-2016, 07:49 PM   #12
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Originally Posted by Rob43 View Post
Here's what I came up with, it worked out very well.



http://forum.e46fanatics.com/showthread.php?t=928024







Rob43

I've had a couple friends use the magnaflow mufflers on their e36's, they all sounded amazing. This is the route I'm going when my current muffler fails.
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Old 11-16-2016, 08:20 PM   #13
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Putting my X-pipe right after the headers. Replacing the middle muffler with that Magnaflow X-Pipe muffler. Currently have dual 2.25" from the headers back to the stock middle resonator and stock muffler, first resonator temporarily deleted. We ran out of pipe and time so we couldn't finish the whole system, getting back at it soon.
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Old 11-17-2016, 01:12 AM   #14
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Did it change the tone of the exhaust at all?
No difference at all. I keep the stock exhaust however in the car, and with 4 cats in place (2 at exhaust manifold, 2 right after the x-pipe) the x-pipe is neglishible in terms of sound
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Old 11-17-2016, 06:41 AM   #15
El conquistador
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Generally, an x-pipe performs better the closer you get it to the manifolds. Generally, the placement of the x-pipe is dictated by an available location to place it. The answer is to place it as far forwards as you can logically do it.
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