1M has more Free flowing OEM DP's than stock 135i

Zuzu · 06-07-2012, 06:01 AM

Very Interesting thread for 1M guys, who are thinking of replacing their down pipes..

States that the 1M DP part number is different than the 135i/335i N54 part number..

Start at post 8

http://www.1addicts.com/forums/showthread.php?t=701756

sparoz · 06-07-2012, 06:32 AM

Quote:

Originally Posted by Zuzu

Very Interesting thread for 1M guys, who are thinking of replacing their down pipes..

States that the 1M DP part number is different than the 135i/335i N54 part number..

Start at post 8

http://www.1addicts.com/forums/showthread.php?t=701756

Thanks Joe - very interesting.

Zuzu · 06-07-2012, 06:44 AM

And from a very reputable source.. Thomas@GIAC after extensive 1M tuning development.

Zuzu · 06-07-2012, 07:20 AM

1M DP:
No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 Rmfd primary catalytic converter ZYL. 1-3 1 18307980403
02 Rmfd primary catalytic converter ZYL. 4-6 1 18307980404

135i DP:
No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 Rmfd primary catalytic converter ZYL. 1-3 1 18307553594
02 Rmfd primary catalytic converter ZYL. 4-6 1 18307553595

sparoz · 06-07-2012, 07:56 AM

Quote:

Originally Posted by Zuzu

1M DP:
No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 Rmfd primary catalytic converter ZYL. 1-3 1 18307980403
02 Rmfd primary catalytic converter ZYL. 4-6 1 18307980404

135i DP:
No. Description Supplement Qty From Up To Part Number Price Notes Photo
01 Rmfd primary catalytic converter ZYL. 1-3 1 18307553594
02 Rmfd primary catalytic converter ZYL. 4-6 1 18307553595

Good to know what the difference is

.

fastcars · 06-07-2012, 08:00 AM

Nice find, thanks Joe!

Zuzu · 06-07-2012, 05:03 PM

Quote:

Originally Posted by fastcars

Nice find, thanks Joe!

Now, just to find out what the actual differences are.. Could be less internal cat restrictions??

luster · 06-07-2012, 11:09 PM

I would have been far more inclined to buy 1M DP's as opposed to aftermarket should they prove to have very close power numbers.

How much are a set of the BMW DP's?

Zuzu · 06-07-2012, 11:16 PM

Quote:

Originally Posted by luster

I would have been far more inclined to buy 1M DP's as opposed to aftermarket should they prove to have very close power numbers.

How much are a set of the BMW DP's?

Don't know about the 1M DP price, but on RealOEM.com they list the 135i N54 DP's @ $1914 for a set.. WTF..

JB4-335 · 06-07-2012, 11:19 PM

Quote:

Originally Posted by Zuzu

Don't know about the 1M DP price, but on RealOEM.com they list the 135i N54 DP's @ $1914 for a set.. WTF..

I'll take $1500 for mine shipped if anyone is interested. Only have about 8,000k's on them.

luster · 06-07-2012, 11:25 PM

where is your 1m Edwin? Did you do a soft top conversion? lol

IDriveACamryNow · 06-07-2012, 11:28 PM

HJS gmbh makes 200 cell cats that are EURO 5 compliant and have a 90% flow rate. I would say that these are either the OEM cats used by M division or very similar. They cost an arm and a leg ($750 each!!!)

I would say that OEM 135i cats are 400 cell, hence why removing them is so beneficial.

JB4-335 · 06-07-2012, 11:30 PM

Quote:

Originally Posted by luster

where is your 1m Edwin? Did you do a soft top conversion? lol

Nahhh there's only one upgrade for me and that's a 10 second R35. Hopefully next year. Still enjoying the N54.

sparoz · 06-07-2012, 11:42 PM

Quote:

Originally Posted by Drawn05

HJS gmbh makes 200 cell cats that are EURO 5 compliant and have a 90% flow rate. I would say that these are either the OEM cats used by M division or very similar. They cost an arm and a leg ($750 each!!!)

I would say that OEM 135i cats are 400 cell, hence why removing them is so beneficial.

The HJS 100 cell is still Euro4 compliant at 95% - and we only need to be Euro4 here at the moment. Not sure if it's worth it though.

Stuart@BMRAutowerkes · 06-08-2012, 12:19 AM

Interesting.

Who with a 1M wants to try a pair of AR DPs from BMR

??

Zuzu · 06-08-2012, 12:30 AM

I would..But would have to get the cell fix

pavo335 · 06-08-2012, 12:33 AM

Quote:

Originally Posted by Zuzu

I would..But would have to get the cell fix

if you take the pipes, i am sure stu would sort you out with a BMS Downpipe Fix

Zuzu · 06-25-2012, 03:04 AM

And one more confirmation from HPAutowerks... Go to post 22

http://www.1addicts.com/forums/showthread.php?t=691143

sparoz · 06-25-2012, 07:25 AM

Quote:

Originally Posted by Zuzu

And one more confirmation from HPAutowerks... Go to post 22

http://www.1addicts.com/forums/showthread.php?t=691143

7kw - might as well leave it at stock so everyone breathes better...

Zuzu · 06-25-2012, 07:30 AM

Quote:

Originally Posted by sparoz

7kw - might as well leave it at stock so everyone breathes better...

True.. exactly my thoughts.

06-07-2012, 06:01 AM	#1
Zuzu Major General 2918 Rep 7,682 Posts Drives: M2 G87 LCI SSG Join Date: Mar 2008 Location: Sydney Australia iTrader: (0)	1M has more Free flowing OEM DP's than stock 135i Very Interesting thread for 1M guys, who are thinking of replacing their down pipes.. States that the 1M DP part number is different than the 135i/335i N54 part number.. Start at post 8 http://www.1addicts.com/forums/showthread.php?t=701756 Last edited by Zuzu; 06-07-2012 at 06:19 AM..
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06-07-2012, 06:44 AM	#3
Zuzu Major General 2918 Rep 7,682 Posts Drives: M2 G87 LCI SSG Join Date: Mar 2008 Location: Sydney Australia iTrader: (0)	And from a very reputable source.. Thomas@GIAC after extensive 1M tuning development.
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06-07-2012, 07:20 AM	#4
Zuzu Major General 2918 Rep 7,682 Posts Drives: M2 G87 LCI SSG Join Date: Mar 2008 Location: Sydney Australia iTrader: (0)	1M DP: No. Description Supplement Qty From Up To Part Number Price Notes Photo 01 Rmfd primary catalytic converter ZYL. 1-3 1 18307980403 02 Rmfd primary catalytic converter ZYL. 4-6 1 18307980404 135i DP: No. Description Supplement Qty From Up To Part Number Price Notes Photo 01 Rmfd primary catalytic converter ZYL. 1-3 1 18307553594 02 Rmfd primary catalytic converter ZYL. 4-6 1 18307553595
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06-07-2012, 08:00 AM	#6
fastcars Private First Class 54 Rep 139 Posts Drives: 2019 M2C Join Date: Oct 2009 Location: Sydney iTrader: (0)	Nice find, thanks Joe!
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06-07-2012, 11:09 PM	#8
luster Major 60 Rep 1,092 Posts Drives: e90, e88 Join Date: Oct 2011 Location: Sydney AU, NJ US, TST HK iTrader: (21)	I would have been far more inclined to buy 1M DP's as opposed to aftermarket should they prove to have very close power numbers. How much are a set of the BMW DP's?
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06-07-2012, 11:25 PM	#11
luster Major 60 Rep 1,092 Posts Drives: e90, e88 Join Date: Oct 2011 Location: Sydney AU, NJ US, TST HK iTrader: (21)	where is your 1m Edwin? Did you do a soft top conversion? lol
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06-07-2012, 11:28 PM	#12
IDriveACamryNow Captain 92 Rep 853 Posts Drives: Yes Join Date: Dec 2010 Location: Left iTrader: (0)	HJS gmbh makes 200 cell cats that are EURO 5 compliant and have a 90% flow rate. I would say that these are either the OEM cats used by M division or very similar. They cost an arm and a leg ($750 each!!!) I would say that OEM 135i cats are 400 cell, hence why removing them is so beneficial.
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06-08-2012, 12:19 AM	#15
Stuart@BMRAutowerkes Major General 881 Rep 5,530 Posts Drives: a black car Join Date: Sep 2010 Location: Sydney iTrader: (3)	Interesting. Who with a 1M wants to try a pair of AR DPs from BMR ??
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06-08-2012, 12:30 AM	#16
Zuzu Major General 2918 Rep 7,682 Posts Drives: M2 G87 LCI SSG Join Date: Mar 2008 Location: Sydney Australia iTrader: (0)	I would..But would have to get the cell fix
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06-25-2012, 03:04 AM	#18
Zuzu Major General 2918 Rep 7,682 Posts Drives: M2 G87 LCI SSG Join Date: Mar 2008 Location: Sydney Australia iTrader: (0)	And one more confirmation from HPAutowerks... Go to post 22 http://www.1addicts.com/forums/showthread.php?t=691143 Last edited by Zuzu; 06-25-2012 at 03:20 AM..
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