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      03-28-2013, 09:36 AM   #1
JOHN328
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N20 downpipe

Currently there's only 2 to choose from my research. Which is ER and afe.
So which is better and why?
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      03-28-2013, 10:16 AM   #2
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does anybody know if the fitment issue with ER resolved yet
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      03-28-2013, 11:01 AM   #3
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Supersprint has one
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      03-28-2013, 02:11 PM   #4
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is it possible to put a downpipe on a 328 xdrive? I was told by someone that the xdrive might not be suitable for one, but I'm not sure of it yet.
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      03-29-2013, 06:07 AM   #5
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meisterschaft also has one!
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      03-29-2013, 04:54 PM   #6
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I like that the supersprint version is a high flow cat! But the price...ugh!
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      03-29-2013, 06:43 PM   #7
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Can someone with the aFe downpipe give us their impressions? It looks to be the best value option we have right now...
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      03-29-2013, 07:41 PM   #8
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Quote:
Originally Posted by JOHN328 View Post
Currently there's only 2 to choose from my research.
Add this one:
http://www.supersprint.com/en/prod-c...converter.aspx

And here: Scroll down to catless down pipe
http://gthaus.com/ver3_ghprice.php?s...&Submit=Submit
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      03-29-2013, 11:43 PM   #9
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Quote:
Originally Posted by cw0974 View Post
is it possible to put a downpipe on a 328 xdrive? I was told by someone that the xdrive might not be suitable for one, but I'm not sure of it yet.
Of course, it is possible to put on a 328xi.
aFe power- my choose, good price and quality.
I drive more than 20000 km with aFe downpipe on 328i,
now put it on 328xi
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Last edited by Zluk; 03-30-2013 at 04:24 AM.
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      03-30-2013, 10:27 AM   #10
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$1000 for that downpipe? It better come with an 18 year old virgin.
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      03-30-2013, 03:24 PM   #11
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Quote:
Originally Posted by Turboedv6
$1000 for that downpipe? It better come with an 18 year old virgin.
I know right? How can anyone justify spending $1k on a downpipe?? I got a full catback for less than that!!
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      03-30-2013, 03:31 PM   #12
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Quote:
Originally Posted by Zluk
Quote:
Originally Posted by cw0974 View Post
is it possible to put a downpipe on a 328 xdrive? I was told by someone that the xdrive might not be suitable for one, but I'm not sure of it yet.
Of course, it is possible to put on a 328xi.
aFe power- my choose, good price and quality.
I drive more than 20000 km with aFe downpipe on 328i,
now put it on 328xi
Thanks for the info on this too... I'm gonna go with the aFe once the BMS JB4 is released for the electric solenoid.
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      03-31-2013, 10:49 AM   #13
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chugster, zluk, thanks for the info. I was hesitant after hearing it might not be so easy for me to get a downpipe, but now I'm looking forward to it.
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      03-31-2013, 05:32 PM   #14
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Quote:
Originally Posted by cw0974 View Post
chugster, zluk, thanks for the info. I was hesitant after hearing it might not be so easy for me to get a downpipe, but now I'm looking forward to it.
FYI: Not exactly a green or street legal choice, and it does not really include 72 virgins (not even 1!)
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      04-01-2013, 03:34 AM   #15
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Quote:
Originally Posted by RJH
Quote:
Originally Posted by cw0974 View Post
chugster, zluk, thanks for the info. I was hesitant after hearing it might not be so easy for me to get a downpipe, but now I'm looking forward to it.
FYI: Not exactly a green or street legal choice, and it does not really include 72 virgins (not even 1!)
What do you mean? Is it illegal for street?
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      04-01-2013, 06:19 AM   #16
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Quote:
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What do you mean? Is it illegal for street?
Seems that almost (if not) anywhere a catless dp is illegal on the street, yes. Only ok for the track. ER & aFe state that on their websites.
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      04-02-2013, 10:39 AM   #17
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Quote:
Originally Posted by David328M-Sport View Post
Seems that almost (if not) anywhere a catless dp is illegal on the street, yes. Only ok for the track. ER & aFe state that on their websites.
how easy is it for people to figure it out though? I mean as in terms of getting in trouble for it.
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      04-02-2013, 10:49 AM   #18
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Quote:
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how easy is it for people to figure it out though? I mean as in terms of getting in trouble for it.
Only an issue at state inspections for emissions. Catless cars also give off a smell.

I am holding out for a sub $600 catted version.
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      04-02-2013, 11:08 AM   #19
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Quote:
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Only an issue at state inspections for emissions. Catless cars also give off a smell.
+1 if not installed kat-back then the determine even by ear hard to,
if set the sound during acceleration will be much louder
in the morning all of your neighbors know that you have to kat-back with down-pipe
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      04-02-2013, 04:26 PM   #20
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Quote:
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how easy is it for people to figure it out though? I mean as in terms of getting in trouble for it.
Well, the first thought that comes to mind is insurance cover. If your car is involved in a collision and your insurance company finds out you have modified your car (illegally) they will probably walk away and not repair your car.

You could be fined by state vehicles authority (if you have one where you live) as well.
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      04-03-2013, 09:13 PM   #21
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Quote:
Originally Posted by David328M-Sport
Quote:
Originally Posted by cw0974 View Post
how easy is it for people to figure it out though? I mean as in terms of getting in trouble for it.
Well, the first thought that comes to mind is insurance cover. If your car is involved in a collision and your insurance company finds out you have modified your car (illegally) they will probably walk away and not repair your car.

You could be fined by state vehicles authority (if you have one where you live) as well.

So is a high flow chatted dp legal?
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      04-05-2013, 01:30 AM   #22
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What's wrong with this downpipe? http://burgertuning.com/N20_F30_328i_downpipe.html

It's only $500
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