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View Poll Results: For GB members only - COATING by DKF yes or no?
Yes, I want coating option by DKF 8 38.10%
No, I want them uncoated 13 61.90%
Voters: 21. You may not vote on this poll

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      03-13-2015, 11:07 PM   #991
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So an update for you guys. I installed my dkf with the new 300 cells and euro OEM headers and rpi's. I started the car up to let things heat up and cycle with just headers and Ofcourse got a cel. I finished the install and after about 50 miles over the course of about a month the cel finally went off. Now to just monitor it over the spring
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      04-22-2015, 10:14 AM   #992
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Hoping to hear the final word on this set up.

Cel or no cel? (Without a tune)

I still haven't installed this, wondering if I need to bite the bullet and swap
out the cats with either a Random Technology or HJS ($$).
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      04-26-2015, 09:28 AM   #993
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Waiting too... I have the resonators installed
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      04-26-2015, 07:45 PM   #994
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I have put about 500 miles on my 300 cell cats. Cel was on for first 15 or so miles, then went off until randomly last week. Then went off later that night (don't have exact mileage count). I was at the track over the weekend and my cel came on again. Stayed on for about 100 miles and then went off again later that night. Now I didn't check the codes and am only speculating that these are catalytic inefficiency codes
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      10-27-2015, 03:46 PM   #995
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New 300 cell cats went on last week. After about 250KM and a stop for fuel CEL went off. Has stayed off. Appears the Cats are doing the job
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      11-17-2016, 07:28 AM   #996
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Not sure if I'm the last Z4M owner to do this mod but I just got my Euro headers and DKF S-pipe installed; NO CEL at first but after starting it for the 5th time, i finally got one. Hopefully it goes away with a tune
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      11-17-2016, 02:51 PM   #997
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hormonics Tab appears to have failed on my set....... :-( great......
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      11-17-2016, 03:01 PM   #998
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With the welds on only one side, I think its just a matter of time with these.
I cut mine off and welder the holes.
No change in harmonics.
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      11-18-2016, 07:08 AM   #999
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I'm just glad i got mine so cheap.......
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      03-06-2017, 03:52 PM   #1000
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I have one of these in satin black for sale.
Keeping my car stock, so never installed.

PM me if anyone's interested.

*** sale pending ***

Last edited by flyzipper; 03-07-2017 at 12:10 PM..
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      03-06-2017, 04:31 PM   #1001
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Quote:
Originally Posted by flyzipper View Post
I have one of these in satin black for sale.
Keeping my car stock, so never installed.

PM me if anyone's interested.
Glad to hear you are still in the Z4MC
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      03-07-2017, 01:09 AM   #1002
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Quote:
Originally Posted by inTgr8r View Post
Glad to hear you are still in the Z4MC
Funny, that's what Mirko said too.
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      03-11-2017, 02:39 PM   #1003
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Quote:
Originally Posted by flyzipper View Post
I have one of these in satin black for sale.
Keeping my car stock, so never installed.

PM me if anyone's interested.

*** sale pending ***
This is reaching back in time, but a question for others in this group buy...

I just sold the original DKF box I received to somebody on the forum (I never used this product, and never even opened the box) and the buyer is saying there are no cats in the box, just the s-pipes, clamps and resonators.

Reviewing the thread, it looks like there was lots of confusion during the fulfilment of this group buy, and I was out of the loop for a while.

Did I miss receiving something? Were the cats in a separate box?
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      03-11-2017, 03:37 PM   #1004
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i believe the unit was shipped with 100 CELL cats, they were supposed to be 300 CELL units and it was discovered they were wrongly shipped with the the 100 CELL units... DKF then shipped out 300 CELL cats to the original buyers.

you should have had both the original 100 CELL units then DKF sent out the actual 300 CELL units to everyone that reached out to him once the discovery was made.

basically .... the hole thing was a mess. DKF is no longer in business, doug the owner was about as stand up as a an can get and genuinely tried to give the community something but sadly was often fighting a loosing battle with his suppliers to seemed to F him over.

I actually bet if you contacted doug he'd probably still do this day ship you a set of cats he's that cool.

i was luckily ( or unlucky if you want to look at it another way) and got the whole set used for 1/4 of the GB price.
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      03-11-2017, 08:00 PM   #1005
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Quote:
Originally Posted by Beedub View Post
i believe the unit was shipped with 100 CELL cats, they were supposed to be 300 CELL units and it was discovered they were wrongly shipped with the the 100 CELL units... DKF then shipped out 300 CELL cats to the original buyers.

you should have had both the original 100 CELL units then DKF sent out the actual 300 CELL units to everyone that reached out to him once the discovery was made.

basically .... the hole thing was a mess. DKF is no longer in business, doug the owner was about as stand up as a an can get and genuinely tried to give the community something but sadly was often fighting a loosing battle with his suppliers to seemed to F him over.

I actually bet if you contacted doug he'd probably still do this day ship you a set of cats he's that cool.

i was luckily ( or unlucky if you want to look at it another way) and got the whole set used for 1/4 of the GB price.
Basically true, except some did not reply to Doug when the 300cells were made, so they didn't get them.

FYI Doug is completely out of the business, so that's not a solution.
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      03-12-2017, 07:41 AM   #1006
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Quote:
Originally Posted by inTgr8r View Post
Basically true, except some did not reply to Doug when the 300cells were made, so they didn't get them.

FYI Doug is completely out of the business, so that's not a solution.
the last time i Facetimed him he had some left over CATS in his garage... if doug still has these he will definitely do the right thing... he's just that type of person.
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      03-12-2017, 11:59 AM   #1007
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Quote:
Originally Posted by Beedub View Post
the last time i Facetimed him he had some left over CATS in his garage... if doug still has these he will definitely do the right thing... he's just that type of person.
Yes he would, but Doug has closed up everything & moved to Florida.
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      03-12-2017, 12:57 PM   #1008
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Sold my exhaust to a fellow forum member!

Last edited by ferrarif1; 03-12-2017 at 08:00 PM.. Reason: Marking Exhaust sold
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      03-12-2017, 02:23 PM   #1009
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Thanks everyone, for filling in some gaps. It sounds likely that I didn't receive the 300s.

If anyone can get a message to Doug, on the off chance he may still have my set, I'd be very happy to do what's necessary to get them to my buyer.
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      09-28-2017, 05:26 PM   #1010
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exhaust for sale?

thought i'd post on here if anybody wants to sell their exhuast from the group buy, I'm looking for headers as well. Thanks
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      09-30-2017, 07:11 PM   #1011
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Quote:
Originally Posted by syclone01 View Post
thought i'd post on here if anybody wants to sell their exhuast from the group buy, I'm looking for headers as well. Thanks
I still have mine from the group buy. Including the 300 cell cats. No headers, though. Pm me if you’re interested. They’ve never been installed. I sold my car.
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