DKF Section 1 kit - whats your pleasure 300cell or 100cell CATs

inTgr8r · 03-09-2013, 04:58 PM

I'm definitely in the market to do something about my section 1.
I have headers going on soon and don't want to modify the OE section 1.

To that end I knew DKF is working hard to get a section kit out soon, so I got a hold of Doug and had a long discussion on what the guys would prefer that are interested in a new section 1.

The basic differences and goals for each are pretty obvious.

100 cell = better performance, more rasp, emissions sniff test..... questionable.
300 cell = less performance, less rasp, better chance of passing the sniff test and less chance of a CEL light.

For me I'm definitely in the 300cell camp and would not consider a 100 cell option.

Talking to Doug, he's trying to get the best deal for us and is negotiating with his vendors.
Its important that he knows the split in who wants 100 & who wants 300

This info will really help to get things rolling guys, so if you're thinking out a DKF section 1 kit, please chime in.

& cast your vote in the pole so that we can track what is needed

Please add you thoughts about your choice as it might help others decide.

Lets get his party started

TIA

UPDATE.......

mousitch · 03-09-2013, 05:26 PM

300 cell cats all the way. I'm ready...

inTgr8r · 03-09-2013, 06:19 PM

Quote:

Originally Posted by mousitch

300 cell cats all the way. I'm ready...

Cast your vote in the pole so we can pass the info to DKF.

ajw45 · 03-09-2013, 06:24 PM

Any idea what the current OEM cell count is?

bmwschnell · 03-09-2013, 06:35 PM

Quote:

Originally Posted by ajw45

Any idea what the current OEM cell count is?

Pretty sure our secondary cats are 200. I also think the euro cats are 200. I was planning on getting the 300 count from dkf, but now I'm not sure. It seems like 200 count cats would be optimal.

Caddyshk · 03-09-2013, 06:53 PM

Quote:

Originally Posted by mousitch

300 cell cats all the way. I'm ready...

inTgr8r · 03-09-2013, 07:47 PM

Quote:

Originally Posted by bmwschnell

Pretty sure our secondary cats are 200. I also think the euro cats are 200. I was planning on getting the 300 count from dkf, but now I'm not sure. It seems like 200 count cats would be optimal.

Don't forget, that if you drop the header CATS, you will still be running fewer total cells.

The two main things for me is minimizing rasp & running w/o CEL Light

Some don't mind the rasp sound , so 100 may be what they want.

johanness · 03-09-2013, 09:42 PM

I think it was recently established beyond a doubt (with photos of exposed cats under the heat shield) that the Euro Sec 1 cats are almost TWICE the size of ours.

Less material = better flow/ more power, which is precisely why I feel relocating our secondary O2's & EGT sensor is preferred over buying a used set of Euro Sec 1's.

However DKF's 100cell option would be a step up from that. That gets my vote

IDLE TIME · 03-10-2013, 05:20 PM

Hey guys we really need this information. Please state you opinion 100 or 300 cell cats
Thank you.

Caddyshk · 03-10-2013, 05:29 PM

I would prefer not adding a tune to support the Fabspeed VAC Headers; if 100, 200 or 300 cell cats allow for the performance gains and no codes I'm in

inTgr8r · 03-12-2013, 04:57 AM

Finding the results so far to be very interesting.
Nobody has voted "100 cell only"

Beedub · 03-12-2013, 06:17 AM

for me it has to be the 100 cell option, the SS section 1 uses 100 cell and they are passing the emisions test over here in the UK so..... not bad, but ideally doug id like your other option that allows me to swap between the decat and catted sections!! this would be my ideal!!!

inTgr8r · 03-12-2013, 06:47 AM

Quote:

Originally Posted by Beedub

for me it has to be the 100 cell option, the SS section 1 uses 100 cell and they are passing the emisions test over here in the UK so..... not bad, but ideally doug id like your other option that allows me to swap between the decat and catted sections!! this would be my ideal!!!

What would you do with the secondary sensors when running CAT-less"????

Would you be running CAT-less normally & just put CAT section back to pass emissions?

Beedub · 03-12-2013, 01:33 PM

Quote:

Originally Posted by inTgr8r

What would you do with the secondary sensors when running CAT-less"????

Would you be running CAT-less normally & just put CAT section back to pass emissions?

ian the DKF Decat section has the bungs in place, bear in mind on my s/C tune i can turn these off readily but for neatness purposes have them inplace :-)
during emissio test i simply load my cat'd tune up and put the cat sections in place!! job done!! For us FI guys i can't ignore the decat gains!, were talking 15/20+Whp proven......

IDLE TIME · 03-12-2013, 02:10 PM

Quote:

Originally Posted by Beedub

Quote:

Originally Posted by inTgr8r

What would you do with the secondary sensors when running CAT-less"????

Would you be running CAT-less normally & just put CAT section back to pass emissions?

ian the DKF Decat section has the bungs in place, bear in mind on my s/C tune i can turn these off readily but for neatness purposes have them inplace :-)
during emissio test i simply load my cat'd tune up and put the cat sections in place!! job done!! For us FI guys i can't ignore the decat gains!, were talking 15/20+Whp proven......

Byron. Don't want to miss lead you the resonators do Not have o2 bungs in them they never did. There was not enough room (OAL ) to put them. In the bypass pipes are the only other option that have the o2 bungs.

Beedub · 03-12-2013, 03:18 PM

Quote:

Originally Posted by IDLE TIME

Byron. Don't want to miss lead you the resonators do Not have o2 bungs in them they never did. There was not enough room (OAL ) to put them. In the bypass pipes are the only other option that have the o2 bungs.

i no ;-) i sed de-cat section not resonator ;-) i dont care about it being obnoxiously loud!! just want performance!!!!!!!!!!

IDLE TIME · 03-17-2013, 12:38 PM

Bump

inTgr8r · 03-17-2013, 01:45 PM

I'm surprised that 300cell is leading the way.
I thought it would be closer to 50/50

IDLE TIME · 03-18-2013, 12:40 AM

Quote:

Originally Posted by IDLE TIME

Bump

Really need your input. Kit should be done by end of month group buy starting shortly. Please sound off 100 or 300

inTgr8r · 03-18-2013, 07:02 PM

Quote:

Originally Posted by IDLE TIME

Really need your input. Kit should be done by end of month group buy starting shortly. Please sound off 100 or 300

That's great news Doug!

...so far it looks like 2:1 split 300:100

Finnegan · 03-18-2013, 07:49 PM

I don't have a horse in the race since I've got a total Euro setup. However, if I were in the market, I'd have to go for the 300 cell. I really can't see 100 cell passing smog in CA with a Euro header setup. I will say this would be a great option, since hacking up the stock cats isn't for everyone (and if not done correctly, is costly), and the Euro Cat solution is big $$$.

Of course, take my input with a grain of salt since again I'm not a potential buyer. I did not vote as I did not want to invalidate the poll.

Mirko · 03-18-2013, 09:46 PM

Depending on the price I would be in for this. After you tested and passed Ian

My preference would 300 cell.

View Poll Results: DKF section 1 kit - 100 or 300 cell CATs ?????
definitely 100 cell CAT	5	17.86%
definitely 300 cell CAT	14	50.00%
100 cell prefered but would consider 300 cell	5	17.86%
300 cell prefered but would consider 100 cell	4	14.29%
Voters: 28. You may not vote on this poll

03-09-2013, 04:58 PM	#1
inTgr8r Lieutenant General 2432 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	DKF Section 1 GB kit - whats your pleasure 300cell or 100cell CATs I'm definitely in the market to do something about my section 1. I have headers going on soon and don't want to modify the OE section 1. To that end I knew DKF is working hard to get a section kit out soon, so I got a hold of Doug and had a long discussion on what the guys would prefer that are interested in a new section 1. The basic differences and goals for each are pretty obvious. 100 cell = better performance, more rasp, emissions sniff test..... questionable. 300 cell = less performance, less rasp, better chance of passing the sniff test and less chance of a CEL light. For me I'm definitely in the 300cell camp and would not consider a 100 cell option. Talking to Doug, he's trying to get the best deal for us and is negotiating with his vendors. Its important that he knows the split in who wants 100 & who wants 300 This info will really help to get things rolling guys, so if you're thinking out a DKF section 1 kit, please chime in. & cast your vote in the pole so that we can track what is needed Please add you thoughts about your choice as it might help others decide. Lets get his party started TIA UPDATE....... __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold) Last edited by inTgr8r; 04-02-2013 at 02:12 PM..
	Appreciate 0 Tweet Quote

03-09-2013, 05:26 PM	#2
mousitch Dark Sider 129 Rep 1,779 Posts Drives: 2008 Space Gray Z4MC Join Date: Jan 2010 Location: Missouri iTrader: (11) Garage List 2008 Z4M Coupe [7.50]	300 cell cats all the way. I'm ready... __________________ [URL=http://imageshack.us/photo/my-images/153/071jt.jpg/] 2008 Space Grey M Coupe-Euro headers-RPI Scoop-Gruppe M CAI-Eisenmann Race Cans-RE X-pipe-ECU Remap with O2 and EGT delete-H&R Sport springs-Zeck CDV delete-Stock Gloss black powder coated wheels-LED Tekarbon Angel Eyes Project-Michelin Super Sports-Hardwired Uniden R7-H&R front and rear spacers-Alarm module added-stereo amp recoded to vert spec settings
	Appreciate 0 Quote

03-09-2013, 06:24 PM	#4
ajw45 Private First Class 32 Rep 149 Posts Drives: Z4M Coupe Join Date: Feb 2011 Location: Boston iTrader: (0)	Any idea what the current OEM cell count is?
	Appreciate 0 Quote

03-09-2013, 09:42 PM	#8
johanness Banned 56 Rep 1,739 Posts Drives: 2008 Z4MC Join Date: Aug 2010 Location: Seattle, Vancouver iTrader: (3) Garage List 2008 BMW Z4M COUPE [7.00] 2012 BMW X1 xDrive 28i [9.00]	I think it was recently established beyond a doubt (with photos of exposed cats under the heat shield) that the Euro Sec 1 cats are almost TWICE the size of ours. Less material = better flow/ more power, which is precisely why I feel relocating our secondary O2's & EGT sensor is preferred over buying a used set of Euro Sec 1's. However DKF's 100cell option would be a step up from that. That gets my vote
	Appreciate 0 Quote

03-10-2013, 05:20 PM	#9
IDLE TIME Private 17 Rep 86 Posts Drives: still searching Join Date: Oct 2012 Location: peoria il iTrader: (0)	Hey guys we really need this information. Please state you opinion 100 or 300 cell cats Thank you.
	Appreciate 0 Quote

03-10-2013, 05:29 PM	#10
Caddyshk M = Midlife Crisis 65 Rep 2,006 Posts Drives: 2006 Z4MC Interlagos Join Date: May 2007 Location: Fort Erie, Ontario, Canada iTrader: (0)	I would prefer not adding a tune to support the Fabspeed VAC Headers; if 100, 200 or 300 cell cats allow for the performance gains and no codes I'm in __________________ 2006 Z4MC - #LL93158 SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM
	Appreciate 0 Quote

03-12-2013, 04:57 AM	#11
inTgr8r Lieutenant General 2432 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	Finding the results so far to be very interesting. Nobody has voted "100 cell only" __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
	Appreciate 0 Quote

03-12-2013, 06:17 AM	#12
Beedub Major General 423 Rep 5,328 Posts Drives: 2007 Z4 M roadster vt2-500 Join Date: Sep 2007 Location: UK iTrader: (0)	for me it has to be the 100 cell option, the SS section 1 uses 100 cell and they are passing the emisions test over here in the UK so..... not bad, but ideally doug id like your other option that allows me to swap between the decat and catted sections!! this would be my ideal!!! __________________ Z4MR VT2 - Clubsport build. Multi award winning Detailing \| Wrap \| PPF specialists UK based - www.topwrapz.com
	Appreciate 0 Quote

03-17-2013, 12:38 PM	#17
IDLE TIME Private 17 Rep 86 Posts Drives: still searching Join Date: Oct 2012 Location: peoria il iTrader: (0)	Bump
	Appreciate 0 Quote

03-17-2013, 01:45 PM	#18
inTgr8r Lieutenant General 2432 Rep 11,667 Posts Drives: M2 Comp Join Date: Mar 2006 Location: Toronto iTrader: (10)	I'm surprised that 300cell is leading the way. I thought it would be closer to 50/50 __________________ '21 M2C Hockenheim Silver '18 718 Cayman S Lava Orange (sold) '13 E92 M3 Santorini Blue (sold) '07 Z4 M Coupe Alpine White (sold)
	Appreciate 0 Quote

03-18-2013, 07:49 PM	#21
Finnegan Dog Listener 703 Rep 7,850 Posts Drives: Z4M/. Z3M, E36/46 M3 Join Date: Oct 2008 Location: Teaching the dog to slalom iTrader: (22)	I don't have a horse in the race since I've got a total Euro setup. However, if I were in the market, I'd have to go for the 300 cell. I really can't see 100 cell passing smog in CA with a Euro header setup. I will say this would be a great option, since hacking up the stock cats isn't for everyone (and if not done correctly, is costly), and the Euro Cat solution is big $$$. Of course, take my input with a grain of salt since again I'm not a potential buyer. I did not vote as I did not want to invalidate the poll.
	Appreciate 0 Quote

03-18-2013, 09:46 PM	#22
Mirko Major 182 Rep 1,031 Posts Drives: E86 Z4M, E90 328i, E84 X1 Join Date: Apr 2011 Location: Toronto iTrader: (2)	Depending on the price I would be in for this. After you tested and passed Ian My preference would 300 cell.
	Appreciate 0 Quote