[MR.]

Finally there is now an OPF deleter that works... You can read more about it below and check out the different versions available for 4, 6 and 8 cylinder cars: https://www.manhart-performance.de/s...f-cat-deleter/

I have spoken to the developer as well and I have heard from a fair few people who use the kit that it really works! Questions? Drop them in the replies below.

Copied from a product page:

The MANHART OPF/GPF Deleter by LEIB Engineering has arrived. The product offers the answer to a growing demand of clients who are looking for a suitable and easy solution that deals with the removal of OPF/GPF-filters, which are installed in the exhaust line from the engine to the rear end of the Fxx and Gxx model series.

The Deleter was developed by LEIB Engineering as an answer to questions from many clients on how to deal with the removal of OPF/GPF-filters in case an exhaust system is being replaced. Customers that opt for an aftermarket exhaust system on their vehicle might run into issues with engine warning messages and limp mode sequences, which could only be dealt with via an ECU/DME mapping, remap or tune.

For people who want to replace their exhaust with a new aftermarket cat-back system or a non-homologated slip-on/axle back system and don’t want to ECU/DME tune their car due to warranty concerns or the fact that the ECU in their car is still locked, the Deleter is the solution since it will deal with any OPF/GPF errors accordingly.



OPF-Delete

Removing the OPF/GPFs from the car has major impact on BMW vehicles produced after July 2018. Specific pressure sensors are able to detect that the flow through the exhaust becomes quicker when you remove the filters. The pressure alters and the sensor will throw an error message anywhere above 5000 rpm or after a specific mileage.

This means that you cannot fully use your car that might have a brand new exhaust system without disabling this sensor. The Deleter will deal with the OPF-Delete and make sure that you won’t have any errors anymore when you decide to change your stock exhaust for a new aftermarket system. Disabling the sensor via an ECU/DME tune is not required anymore.

For eight-cilinder vehicles we not only deliver the OPF-Deleter, but also an additional CAN MIL Deleter. This extra tool will also be installed and is required to not have any check engine light (CEL) after changing the catalyst(s) or GPF(s). The error entry that occures by changing the catalyst(s) and/or the GPF(s) will be disabled by the Deleter.



In combination with an aftermarket downpipe

Customers who will install de-cat "race" downpipes, will also be able to use the Deleter alongside a CAN MIL Deleter solution, which deals with the removal of the catalytic converters. Customers who will install aftermarket "sport" downpipes, will also be able to use the Deleter.

Fitting a new downpipe and removing the OPF/GPF while using the OPF Deleter product only works successfully when an aftermarket downpipe allows for the connection to the pressure sensors. You have to keep the connection to the pressure sensors in place to allow the solution to work. The new downpipe must have the two tubes, which connect to the pressure sensors which are shown on the images above. Be aware that downpipes without the pressure sensor tubes can’t be used in connection to the product shown here.

Installation

The plug & play installation will take about 90 minutes without cutting or soldering. The installation is possible without any prior knowledge through available and illustrated installation instructions. Alternatively, we recommend installation by a specialist workshop or one of our dealers. By using the standard or OEM automotive connectors we are guaranteeing full functionality at any time.

The key important factor of this product is that you won’t have any error messages, which are generated in the memory of the engine control unit and no aftermarket engine tune is required.

[kart driver]

Yes, but that is exactly Leib Perfomance.



https://www.leib-engineering.de/en/l...mpetition-f87n

[MR.]

Originally Posted by kart driver

Yes, but that is exactly Leib Perfomance.

https://www.leib-engineering.de/en/l...mpetition-f87n

As mentioned in the text, but this text above explains more what it can or cannot do

MR

[maniac886]

This is great news - I am looking to get my Milltek OPF back race exhaust fitted soon. Even though I have not read any issues with this specific exhaust triggering the EML I was concerned that the only way to resolve the issue previously was via a tune which I wasn't keen on. At least now if the EML does get triggered we now have a discreet solution that doesn't require a tune.

[NathObeaN]

Originally Posted by maniac886

This is great news - I am looking to get my Milltek OPF back race exhaust fitted soon. Even though I have not read any issues with this specific exhaust triggering the EML I was concerned that the only way to resolve the issue previously was via a tune which I wasn't keen on. At least now if the EML does get triggered we now have a discreet solution that doesn't require a tune.

I have the same exhaust. No OPF issues in the 2+ months I've had it. Not heard anyone having OPF warnings with it either (Remus yes, not Miltek). Also… it's a bloody awesome exhaust, enjoy ).

[maniac886]

Originally Posted by NathObeaN

I have the same exhaust. No OPF issues in the 2+ months I've had it. Not heard anyone having OPF warnings with it either (Remus yes, not Miltek). Also… it's a bloody awesome exhaust, enjoy ).

That's good to hear, best get the car booked in then!

[Talx]

As you mentioned this cannot be used basically with any aftermarket cattles/open downpipes on the market since they don't have the pressure nipples.

I'm using AK motions Data Display with cattles downpipes and AA El OPF delete and the AK motion is working great! No problems what so ever and I get the added benefits of all the sensor readings/ data etc, and most importantly the ability to control the exhaust flaps all in one cost effective package

[NathObeaN]

Originally Posted by maniac886

That's good to hear, best get the car booked in then!

The way I see it, if you trip an OPF warning when you haven't touched the OPF just take it to BMW and ask them to reset it anyway (if it does happen at any point).

[MR.]

Originally Posted by Talx

As you mentioned this cannot be used basically with any aftermarket cattles/open downpipes on the market since they don't have the pressure nipples.

I'm using AK motions Data Display with cattles downpipes and AA El OPF delete and the AK motion is working great! No problems what so ever and I get the added benefits of all the sensor readings/ data etc, and most importantly the ability to control the exhaust flaps all in one cost effective package

Unfortunately the AK Motion is not a solution anymore, since they have run out of the ability to sell the display. Delivery of base materials seems to be the problem. I hope they can sell again soon so that people can get their displays, but for now they stopped deliveries I heard.

MR

[MR.]

Originally Posted by NathObeaN

The way I see it, if you trip an OPF warning when you haven't touched the OPF just take it to BMW and ask them to reset it anyway (if it does happen at any point).

And then possibly after 300 km you have it again Good luck with that one...

MR

[NathObeaN]

Originally Posted by MR.

And then possibly after 300 km you have it again Good luck with that one...

MR

Oh yeah if it happens frequently you're a little bit screwed. I just mean if it's happening rarely. I know Joe Achilles had his tripped with the Remus, took it to BMW and then never had it since. It makes me wonder if BMW reset it, does it reset the 'learning' mode of the sensor.

[///M2CS]

Originally Posted by MR.

As mentioned in the text, but this text above explains more what it can or cannot do

MR

have you tested? Manhart had previously marketed a product which ultimately proved ineffective. I wish I could be sure that this is not the case this time😉

[MR.]

Originally Posted by ///M2CS

have you tested? Manhart had previously marketed a product which ultimately proved ineffective. I wish I could be sure that this is not the case this time😉

Yep tested it and works! Going into my GP3 as well... and the owner of Leib Engineering runs a M2 Competition that has it installed as well.

MANHART kit was offered and promised by the developer, but then never finished. Simply proved too difficult, and the new solution is way easier and a lot more effective.

MR

[MR.]

Originally Posted by NathObeaN

Oh yeah if it happens frequently you're a little bit screwed. I just mean if it's happening rarely. I know Joe Achilles had his tripped with the Remus, took it to BMW and then never had it since. It makes me wonder if BMW reset it, does it reset the 'learning' mode of the sensor.

Not sure he didn't have it again... He also changed his exhaust set up as well, so I am not sure you can say that. Also he had the software of his car updated, so that could also be the case. Not sure a reset was the answer completely.

MR

[///M2CS]

Originally Posted by MR.

Yep tested it and works! Going into my GP3 as well... and the owner of Leib Engineering runs a M2 Competition that has it installed as well.

MANHART kit was offered and promised by the developer, but then never finished. Simply proved too difficult, and the new solution is way easier and a lot more effective.

MR

Great !
Many thanks !

opf deleter ordered

[Betaone]

This sounds like a good solution but there are not enough detailed instructions to reach the OPF sensors . I wanted to buy it for MINI Cooper S that my wife uses . I asked for information but a week has passed and I have not received any response .

[MR.]

Originally Posted by Betaone

This sounds like a good solution but there are not enough detailed instructions to reach the OPF sensors . I wanted to buy it for MINI Cooper S that my wife uses . I asked for information but a week has passed and I have not received any response .

What do you need? Drop me a DM and I might be able to help you.

MR

[doughboy]

[QUOTE=Talx;27619530]As you mentioned this cannot be used basically with any aftermarket cattles/open downpipes on the market since they don't have the pressure nipples.

I'm sure Supersprint make decat DPs with the pressure lines for opf sensors?

[BMW1973]

I installed two months ago the LEIB OPF DELETER on 2021 M2cs.
Its works fine so far..
The only issue was that it took more then 1 hour disconnect the two sensors from the stock downpipes and installing them back again
Only a small hand person can do it! the rest of the work was not to complicated.

[Betaone]

Originally Posted by BMW1973

I installed two months ago the LEIB OPF DELETER on 2021 M2cs.
Its works fine so far..
The only issue was that it took more then 1 hour disconnect the two sensors from the stock downpipes and installing them back again
Only a small hand person can do it! the rest of the work was not to complicated.

Only one hour for M2 C ? I put 3 hours to put one on the Mini Cooper S that my wife uses ( and that I use too of course ) . I went crazy to remove cover OPF sensor with 8 tabs .

[kart driver]

Just installed the OPF deleter together with AA single midpipe.

Works perfect at the moment with no issues.

[icelink]

gents, forgive me for reviving an old-ish thread. I have an issue with opf deleter and thought I'd ask a question here.

I have an M140i (I know not relevant to this thread) and had a BCS cat-back exhaust fitted. At the same time I have installed Leib opf deleter. Car gave me limp mode after approx 400 miles. I've done a reset using ISTA by following instructions in the installation manual. actually I did it twice to no avail. Limp mode comes back when car is doing consistently above 4-5k rpm.

Pressure line has been retained. Deleter seems to have been installed correctly(sent photos to a place where I bought it from) and on quick visual inspection pressure lines are intact. Need to get my car up on a ramp to check underneath but with work, all the garages are closed by the time I'm finished.

I've reached out to the place where I bought the deleter and they have sent an email to Leib. Whilst I am waiting, I thought I'd ask here in case someone had a similar situation or can advise what else I can check.

After deleting opf, car became alive and I can feel it's not "suffocated" anymore. really don't want to go back to stock