[kash330D]

I've had a quote from a reputable company (dervtech Manchester) to do the above and have been told it will make over 300.

Are there any pro's and cons's of stage 2 over stage 1?

I don't wan't any issues come MOT time or dashboard errors.

I've been told that in theory it would fail MOT but they've not come across it.

I'm in two minds. Thoughts?

[sirleeofroy]

The DPF removal will result in an MOT fail unless you have a friendly MOT tester....

The MOT guidelines were changed last year to specifically include "DPF Tampering and Removal" and will instafail.... Something to think about.

The EGR valve however is not included in that and can be removed with no penalty.

As for dash errors etc... As long as the DPF and EGR are mapped out then you won't get errors as far as I'm aware.

[rasa bmw]

make sure the egr is turned off properly,, most just dont have the software/skill to do it properly..bwchiptune developed a map with egr delete which makes it stay closed etc,,ill post a write up of his map/deletes.https://www.bimmerforums.co.uk/forum...tware-t474769/..

[kash330D]

I really cant be bothered for the agro of having the DPF delete so leaning toward stage 1 if i do it.

[Silver Streek]

You can make good power when you leave the dpf in place. You do need a decent tuner though, BWChiptune get good reviews on here. I'm sure they will be willing to advise you if you phone them.

[rasa bmw]

Originally Posted by Silver Streek

You can make good power when you leave the dpf in place. You do need a decent tuner though, BWChiptune get good reviews on here. I'm sure they will be willing to advise you if you phone them.

yeh,,the link i put to egr was from jason

[nick46]

Originally Posted by Silver Streek

You can make good power when you leave the dpf in place. You do need a decent tuner though, BWChiptune get good reviews on here. I'm sure they will be willing to advise you if you phone them.

Had mine done at BWchiptune. EGR mapped put and DPF left alone. Absolutely no need to remove it. Car now makes 317bhp and 673nm, and that was an all round map, so if I went for all out power I could've had more.
Jason is one of the best in the business, just Google BWchiptune and you'll see why. I travelled a long way to get to him but it was well worth it.

[rasa bmw]

as said above,,i live over 350 miles from him,,but he did it via a live link to a place near me...custom tune 7 runs on dyno .2 of them stock runs...ask him as he has a few places he does this round the country

[MrSweet1991]

Originally Posted by nick46

Had mine done at BWchiptune. EGR mapped put and DPF left alone. Absolutely no need to remove it. Car now makes 317bhp and 673nm, and that was an all round map, so if I went for all out power I could've had more.
Jason is one of the best in the business, just Google BWchiptune and you'll see why. I travelled a long way to get to him but it was well worth it.

Man it's been so long since I've been on here! But man 317bhp with DPF is incredible, I myself try to encourage people to leave the DPF in tact after reading a message by BWChiptune back in 2017 but a lot of people are sheep and are just unaware of the impact a DPF truly has and it doesn't help with tuners craving the DPF deletion as part of a tune.. It's a shame really but I didn't know it could put that down with a DPF. Do you monitor regens and soot to get an idea how the dpf copes? And do you have M57 or N57?

[rasa bmw]

Originally Posted by MrSweet1991

Man it's been so long since I've been on here! But man 317bhp with DPF is incredible, I myself try to encourage people to leave the DPF in tact after reading a message by BWChiptune back in 2017 but a lot of people are sheep and are just unaware of the impact a DPF truly has and it doesn't help with tuners craving the DPF deletion as part of a tune.. It's a shame really but I didn't know it could put that down with a DPF. Do you monitor regens and soot to get an idea how the dpf copes? And do you have M57 or N57?

he has n57 as iys lci,,very hard to get 320 bhp out of pre lci,,mine is ar 305 bhp, wo dpf,my 335d at 348 bhp with dpf

[MrSweet1991]

Originally Posted by rasa bmw

he has n57 as iys lci,,very hard to get 320 bhp out of pre lci,,mine is ar 305 bhp, wo dpf,my 335d at 348 bhp with dpf

Ahh that explains the extra horses then, so your pre lci gets 305 without DPF? I need to get mine on a dyno as I have no idea how much its putting down. Love the 335D as well absolute beast,, it's the spool from the twin turbo that I really like. My goal once insurance drops is to follow what a chap did on YouTube (bmw power) I think the channel name is, he got 457bhp out of his 330D pre LCI, a lot of work but I've enjoyed working on mine so it would be a good project. How's the 335d in respects of regens and soot (if you do monitor that is)

[rasa bmw]

Originally Posted by MrSweet1991

Ahh that explains the extra horses then, so your pre lci gets 305 without DPF? I need to get mine on a dyno as I have no idea how much its putting down. Love the 335D as well absolute beast,, it's the spool from the twin turbo that I really like. My goal once insurance drops is to follow what a chap did on YouTube (bmw power) I think the channel name is, he got 457bhp out of his 330D pre LCI, a lot of work but I've enjoyed working on mine so it would be a good project. How's the 335d in respects of regens and soot (if you do monitor that is)

only had it since september,,4k miles...only checked on foxwell scanner to see when last regen was,,i never notic eit happening,,car drives great

[kash330D]

Originally Posted by nick46

Had mine done at BWchiptune. EGR mapped put and DPF left alone. Absolutely no need to remove it. Car now makes 317bhp and 673nm, and that was an all round map, so if I went for all out power I could've had more.
Jason is one of the best in the business, just Google BWchiptune and you'll see why. I travelled a long way to get to him but it was well worth it.

This is gerat to hear.

I'll pop down and see what happens

[nick46]

Originally Posted by MrSweet1991

Man it's been so long since I've been on here! But man 317bhp with DPF is incredible, I myself try to encourage people to leave the DPF in tact after reading a message by BWChiptune back in 2017 but a lot of people are sheep and are just unaware of the impact a DPF truly has and it doesn't help with tuners craving the DPF deletion as part of a tune.. It's a shame really but I didn't know it could put that down with a DPF. Do you monitor regens and soot to get an idea how the dpf copes? And do you have M57 or N57?

As rasa has said mine is the N57. I have no issues with regens. I have checked the levels a couple of times and all good.

[kash330D]

off to dervtech manchester tomorrow for stage 2. Will report on figures later

[rasa bmw]

Originally Posted by kash330D

off to dervtech manchester tomorrow for stage 2. Will report on figures later

make sure you get stock runs on dyno

[kash330D]

Mapped today and got these figures.

Apparently there was already a tune file on the car - supposed to be 231 stock.



Feels much stronger and does pull more through every gear. I was expecting a little more, but i haven't driven it that much and didn't realise it was already tuned if this is true.

Gains seem strong either way?

[Nel2014]

Excellent figures, whats the best wat to monitor the DPF?

[kash330D]

Originally Posted by Nel2014

Excellent figures, whats the best wat to monitor the DPF?

no idea... i went stage 2 so its been removed along with egr

[rasa bmw]

ha ha ,,thats honestly what they all say,,the dyno stock runs are over reading,,you can knock 30 bhp offf your final figure,,durham remaps done my 330d had the exact same as yours 252 and said it had a map on it,,nope its because they are knob heads inflating there figures,,my 335d made 280 bhp stock on a proper dyno....

[Sir_Dave]

I simply dont understand why if BWChiptune will remap remotedly, you'd even consider going anywhere else. Pulling the DPF off a diesel is so 2009 FFS lol.

[nick46]

Originally Posted by rasa bmw

ha ha ,,thats honestly what they all say,,the dyno stock runs are over reading,,you can knock 30 bhp offf your final figure,,durham remaps done my 330d had the exact same as yours 252 and said it had a map on it,,nope its because they are knob heads inflating there figures,,my 335d made 280 bhp stock on a proper dyno....

Definitely get honest figures at BWchiptune as my 330d was coming up short in stock trim. Think it managed 236bhp when it should've been 245bhp. Not bad though for a car that had nearly 80k on the clock though. The impressive thing was the stock torque was a fair bit higher than it should've been, although I can't remember what the figure was off the top of my head.
Can't believe the OP went against the advice and got the dpf removed. Hope he knows a friendly mot tester and also doesn't get pulled.