The only result of having a missing dpf is that the sensors of pressure, before and after the dpf, measure approx the exact same pressure. It's called back pressure and should be below 75mbar when running the test procedure with Rheingold. If dpf is missing the dpf back pressure will measure somewhere around 0. Bmw ECU units are programmed to register a fault "back pressure too low", however this fault will not light anything on your dash and your vehicle will keep running perfectly. If the def unit fails, replace the sensors with a set of appropriate resistors that have the same resistance as a good working def sensor. That's a lot safer than opening up your ECU for programming. The

Im glad out kit worked out great for the OP. 10K mile trip is an amazing test for something like this.

I looked over coupe of responses and noticed people advising crushing the original dpf material, installing resistors and calling that a job complete. Tho the mechanical aspect is possible and do-able, the resistor idea (tricking computer to working without dpf) will not work. First of all, you will have massive power loss at mid range. Second of all, you will have Yards of black smoke behind you once the computer goes into regen mode.

We drive pretty expensive cars, and I strongly believe that putting resistors on cars without a tune is not a proper solution. If a potential customers want to obtain their own hardware for the DPF delete, we will be more then happy to sell you just the tune.

Any videos?

How is the exhaust noise affected, if at all.

We are glad to announce that the production has started on these pipes. First five customers will receive $500 discount on Stage 2 option.
Here are the pictures of the final pipe:

http://i1000.photobucket.com/albums/...psmhbr2vpv.jpg

http://i1000.photobucket.com/albums/...psc8lubyhu.jpg

http://i1000.photobucket.com/albums/...psgwjm82eh.jpg

Still 110% glad I did this mod. Alex was awesome through the process of doing this and after 12,000 miles I've yet to have a single issue. For MUCH more power and better MPG's this must be considered!

Jesus, if this was available about 1-2 months ago, I would have done it in a second. My EGR cooler pipe cracked and I would have much rather just dumped all the emissions crap. Oh well. Maybe if I still have this thing when it cracks again...

So im in NY and we have emissions but nothing gets put in the tailpipe to sniff anything.
My DEF tank has an error code of P205C and i dont feel like spending all that money to get a new one, im at 105k miles.
If i get this delete pipe and install it, put the sensors in and clear all codes will i pass inspection, considering everything else is good to go? The ECU needs to be coded as well correct?

Also, what happens to the DEF tanks when this delete is done, can i still keep the CAT and the muffler in? Im not looking for loud exhaust, just want to have a worry free diesel w/o all this clean burning crap.

Ozer, just responded to your PM.

Thanks again for the review of the product and Im glad you are enjoying the pipes

Count me in. You have a PM