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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 07-14-2010, 12:20 AM   #1
Jkim
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which magnaflow?

new to swapping out mufflers, exhaust work, and such. so forgive me for some questions.

which magnaflow muffler would be the best match for my car?
-'02 325Ci

is it the 14815:

# Part #: 14815
# Inlet: 2.25" Center
# Outlet: 7" Long - 3" Dual Round - Double Wall - Straight Cut
# Overall Length: 21"
# Body Length: 14"
# Body Type: 5" x 8" Oval
# Manufacturer: MagnaFlow
# Model: Street Muffler
# Material: Polished Stainless Steel

thanks in advance
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Old 07-14-2010, 03:16 AM   #2
e46techtuner
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Are you just switching out the muffler?

I would get a 3" inlet muffler and just get a custom cat-back pipe fabricated.
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Old 07-14-2010, 11:38 PM   #3
Jkim
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is the stock pipe 2x2.5"?

Last edited by Jkim; 07-15-2010 at 01:38 AM.
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Old 07-15-2010, 10:40 PM   #4
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no they are both 2"
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Old 07-15-2010, 10:41 PM   #5
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no they are 2"
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Old 07-15-2010, 11:38 PM   #6
omhl
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yes 14815

i love it now.
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Old 07-16-2010, 02:39 PM   #7
Jkim
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Originally Posted by omhl View Post
yes 14815

i love it now.
since the inlet is ONE pipe, did you use a "Y" connector to weld it on? guess im gonna look for the one that'll match directly with the car's TWO 2" pipes. any idea what model # that one is?
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Old 07-16-2010, 02:52 PM   #8
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14816
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Old 07-16-2010, 02:52 PM   #9
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i made them do a 3 ypipe from my dual exhaust and then it goes back out to a 2, so there's no loss
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Old 07-16-2010, 03:14 PM   #10
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yes Y

imho only the 14815 tips look flush with the body

14816 looks weird
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Old 07-16-2010, 07:33 PM   #11
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Quote:
Originally Posted by omhl View Post
yes Y

imho only the 14815 tips look flush with the body

14816 looks weird
idk i thought the exact opposite, and went with the 14816.

Plus, i thought the 14815 sounded a lot raspier on youtube vids when I looked it up. The 14816 imo sounds a lot more refined a deeper... its more smooth than it rasp if there is any.

my setup: just 3in all the way back - no resonators. I'm debating on getting headers because I like the way it sounds now, not much drone in the cabin while crusing... perfect for me!
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Old 07-16-2010, 07:46 PM   #12
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Originally Posted by abstracteknics View Post
idk i thought the exact opposite, and went with the 14816.

Plus, i thought the 14815 sounded a lot raspier on youtube vids when I looked it up. The 14816 imo sounds a lot more refined a deeper... its more smooth than it rasp if there is any.

my setup: just 3in all the way back - no resonators. I'm debating on getting headers because I like the way it sounds now, not much drone in the cabin while crusing... perfect for me!
with headers you will lose too much backpressure and hurt your power i think. i have just headers and a stock system, and it pulls amazing up high but i definitly noticed a small loss in low end power, easier to stall car.

I like the 14816 but how does it stack up against the eurospec muffler.
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Old 07-16-2010, 08:36 PM   #13
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ummm...if you look on youtube for exhaust sounds.thats retarded.
youtube compresses the quality and i doubt the microphone can pick up all the frequencies... lol talk about nonsense.

and the design of the two mufflers are essentially the same free flow design.

14815 has no rasp. and it has a deep tone and growl.
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Old 07-16-2010, 11:46 PM   #14
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Quote:
Originally Posted by mvrk10256 View Post
with headers you will lose too much backpressure and hurt your power i think. i have just headers and a stock system, and it pulls amazing up high but i definitly noticed a small loss in low end power, easier to stall car.

I like the 14816 but how does it stack up against the eurospec muffler.
hows the eurospec muffler? price?

and the 816 in a center inlet..? isnt there one with dual in AND outs? so i wouldnt need a Y pipe?

Last edited by Jkim; 07-16-2010 at 11:48 PM.
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Old 07-17-2010, 11:35 PM   #15
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Quote:
Originally Posted by omhl View Post
ummm...if you look on youtube for exhaust sounds.thats retarded.
youtube compresses the quality and i doubt the microphone can pick up all the frequencies... lol talk about nonsense.

and the design of the two mufflers are essentially the same free flow design.

14815 has no rasp. and it has a deep tone and growl.
Meh its all personal preference i suppose! but my buddy's youtube of his greddy exhaust when he first put it on his FD3s is pretty spot on. :idk:

Never heard the 14815 in real life though, would like to sometime!


Quote:
Originally Posted by mvrk10256 View Post
with headers you will lose too much backpressure and hurt your power i think. i have just headers and a stock system, and it pulls amazing up high but i definitly noticed a small loss in low end power, easier to stall car.

I like the 14816 but how does it stack up against the eurospec muffler.
Quote:
Originally Posted by Jkim View Post
hows the eurospec muffler? price?

and the 816 in a center inlet..? isnt there one with dual in AND outs? so i wouldnt need a Y pipe?
http://forum.e46fanatics.com/showthr...o+spec+muffler read at least some of the thread to get an idea.

Imo sounds pretty similar to mine, but I might prefer the eurospec over mine... the 14816 is great don't get me wrong, but I felt it was a little too quiet, so I removed a resonator, then later on a second to achieve the tone I wanted. Euro-spec said the setup is just intake + exhaust to get the sound, which sounds really nice. Too late for me now! lol

edit: yeahh 14816 is only center inlet.. you'll have to check magnaflow website for dual in and outs. Make sure the body length is something like 14" anything longer than that won't run flush with your bumper. eurospec is dual in and out. I would take the eurospec if it were priced somewhere along mid 200's (i got my magnaflow for 200 installed [exhaust was used for 1 week and returned])
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Old 07-19-2010, 09:54 PM   #16
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Youtube vids are better than trying out multiple mufflers or buying one that you THINK will sound good.
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