Exhaust gut after all deletes.

Lexx.md · 05-09-2016, 10:34 AM

So i finally had my 335d in one piece back

I was lucky and had connected everything back as it was, and it looks like everything as should be.

What i was doing?
Previously i had my car tuned, i removed EGR, i have installed catch can, and disabled SCR.
The only part i had was exhaust, recently i had even some code related with some pressures, i ignored it as i will address it after exhaust fixed.

I understand that a lot of people here are going for performance and extra 3 ponies in their cars.

I am going for complete stock look, stock sound, just to make free flow for dirty cheap.

Stock look - it is important here to pass inspection, as they are supposed to do "visual inspection", nobody is doing it but still better to be prepared. And i used to leave in NJ, they had cameras in the floor to check if catalytics were in place.

Lexx.md · 05-09-2016, 10:36 AM

This is what i have removed, just for reference.

Lexx.md · 05-09-2016, 10:37 AM

Another piece

Lexx.md · 05-09-2016, 10:38 AM

First metal part after turbos, very and very hard stuff, i am not sure what it is made from, but it was most difficult to cut it thru.

Lexx.md · 05-09-2016, 10:39 AM

This is DPF by itself, i found it very interesting that it was blocked every next cell, in the chess pattern.

Lexx.md · 05-09-2016, 10:44 AM

Cut open, bought some exhaust pipe 3'' to 2 1/2'' adapter and 45 degree bend for 12$ in autozone.
And welded them into place.
After that add as much mineral insulation as you can.

On russian forums they call it resonator, but i believe it is very like muffler.

Lexx.md · 05-09-2016, 10:48 AM

Got a 12 pack and went to a friend who tig welded everything back using stainless steel rods.

Yes it is not a perfect weld, but who cares, nobody will see it in next 5-10 years?

What i have noticed that engine revs much faster, noise is at same level, which exactly i was looking for.

And now you can start yell on me

Sti581 · 05-09-2016, 11:17 AM

Can you finally hear turbo whistle? Or is that muffled down? I am debating ongoing aftermarket turbo back to get that whistle. But I don't want the cabin drone on the freeway from an open exhaust. Can you comment of yours and who ever has turbo back exhaust do you have cabin drone?

Lexx.md · 05-09-2016, 12:18 PM

Quote:

Originally Posted by Sti581

Can you finally hear turbo whistle? Or is that muffled down? I am debating ongoing aftermarket turbo back to get that whistle. But I don't want the cabin drone on the freeway from an open exhaust. Can you comment of yours and who ever has turbo back exhaust do you have cabin drone?

It wasn't in my scope to get any other noises, i heard turbo whistle while running just downpipe, with full exhaust it is quiet.

rulonger · 05-09-2016, 12:34 PM

Quote:

Originally Posted by Sti581

Can you finally hear turbo whistle? Or is that muffled down? I am debating ongoing aftermarket turbo back to get that whistle. But I don't want the cabin drone on the freeway from an open exhaust. Can you comment of yours and who ever has turbo back exhaust do you have cabin drone?

Bohl down pipe, gutted SCR and the BPC Stage 2+ -- plenty of whistle

WreckerX5d · 05-09-2016, 01:03 PM

Quote:

Originally Posted by rulonger

Quote:

Originally Posted by Sti581

Can you finally hear turbo whistle? Or is that muffled down? I am debating ongoing aftermarket turbo back to get that whistle. But I don't want the cabin drone on the freeway from an open exhaust. Can you comment of yours and who ever has turbo back exhaust do you have cabin drone?

Bohl down pipe, gutted SCR and the BPC Stage 2+ -- plenty of whistle

Yep, it sounds like a Powerstroke.

Got_Diesel · 05-09-2016, 01:19 PM

How is the sound? Unonbtanium welding on Instagram has a few clips and you hear the whistle and the grunt but does it drone at highway speed? What does it sound like in cabin?

GaryE30 · 05-09-2016, 01:45 PM

Didn't bother to deburr those drilled holes and remove the sticker?

335dsleeper · 05-09-2016, 02:22 PM

Quote:

Originally Posted by Lexx.md

Got a 12 pack and went to a friend who tig welded everything back using stainless steel rods.

Yes it is not a perfect weld, but who cares, nobody will see it in next 5-10 years?

What i have noticed that engine revs much faster, noise is at same level, which exactly i was looking for.

And now you can start yell on me

I like it! I've been considering something similar for my x5 to pass a visual Inspection.

335dsleeper · 05-09-2016, 02:22 PM

Quote:

Originally Posted by GaryE30

Didn't bother to deburr those drilled holes and remove the sticker?

Who cares? Sticker will be gone in the matter of minutes.

BB_cuda · 05-09-2016, 03:04 PM

From post #4, the DOC is shown. You make comment of "tough to get through". Did you remove the DOC as well? There have been one or 2 that I know of that gutted the filter portion of the DPF but left the DOC alone for smell purposes. They also just welded the shell back shut without putting in the perforated tube that you added along with insulation. That is original I'll have to say.

Since you added the tube to the DPF, did you do the same with the SCR or it is just a hollow enclosure now?

Yozh · 05-09-2016, 03:14 PM

Quote:

Originally Posted by Lexx.md

First metal part after turbos, very and very hard stuff, i am not sure what it is made from, but it was most difficult to cut it thru.

Too bad you decided to remove the DOC. To the wondering minds, I have no drone whatsoever.

atwal187 · 05-09-2016, 03:18 PM

what tools did you use to remove the actual dpf and to cut into the dpf outer ?

GaryE30 · 05-09-2016, 04:15 PM

Quote:

Originally Posted by 335dsleeper

Who cares? Sticker will be gone in the matter of minutes.

Do you keep the stickers on the tread of your tires when you buy them new or do you say, "Who cares? Sticker will be gone in the matter of minutes?"

It's just silly to me and only takes a minute to clean up. Same for deburring. I guess I just like a clean job and this is all but that. Totally fine just not my cup of tea.

Sometimes the hack-jobs work well, other times they don't. Not my car, I'm just a guy with an opinion like anyone else.

DSB335d · 05-09-2016, 07:09 PM

Quote:

Originally Posted by GaryE30

Quote:

Originally Posted by 335dsleeper

Who cares? Sticker will be gone in the matter of minutes.

Do you keep the stickers on the tread of your tires when you buy them new or do you say, "Who cares? Sticker will be gone in the matter of minutes?"

It's just silly to me and only takes a minute to clean up. Same for deburring. I guess I just like a clean job and this is all but that. Totally fine just not my cup of tea.

Sometimes the hack-jobs work well, other times they don't. Not my car, I'm just a guy with an opinion like anyone else.

+1

335dsleeper · 05-09-2016, 07:18 PM

Quote:

Originally Posted by GaryE30

Do you keep the stickers on the tread of your tires when you buy them new or do you say, "Who cares? Sticker will be gone in the matter of minutes?"

It's just silly to me and only takes a minute to clean up. Same for deburring. I guess I just like a clean job and this is all but that. Totally fine just not my cup of tea.

Sometimes the hack-jobs work well, other times they don't. Not my car, I'm just a guy with an opinion like anyone else.

Not sure what you're confused about... I definitely wouldn't insult the OP by calling this a"hack-job" or suggesting that people commenting in this thread are hacks.

Sti581 · 05-09-2016, 07:42 PM

Ok this is a joke. Come on now guys we are grown adults. No one is a hack job for leaving a sticker that is going to melt away with heat over time. Lol. This is so childish. I am thankful he started this thread to show us the work involved. Kudos to him. This is a helpful thread and I wouldn't discount it.

Keep up the good work sir.

05-09-2016, 10:34 AM	#1
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	Exhaust gut after all deletes. So i finally had my 335d in one piece back I was lucky and had connected everything back as it was, and it looks like everything as should be. What i was doing? Previously i had my car tuned, i removed EGR, i have installed catch can, and disabled SCR. The only part i had was exhaust, recently i had even some code related with some pressures, i ignored it as i will address it after exhaust fixed. I understand that a lot of people here are going for performance and extra 3 ponies in their cars. I am going for complete stock look, stock sound, just to make free flow for dirty cheap. Stock look - it is important here to pass inspection, as they are supposed to do "visual inspection", nobody is doing it but still better to be prepared. And i used to leave in NJ, they had cameras in the floor to check if catalytics were in place.
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05-09-2016, 10:36 AM	#2
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	This is what i have removed, just for reference. Attached Images
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05-09-2016, 10:37 AM	#3
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	Another piece Attached Images
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05-09-2016, 10:38 AM	#4
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	First metal part after turbos, very and very hard stuff, i am not sure what it is made from, but it was most difficult to cut it thru. Attached Images
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05-09-2016, 10:39 AM	#5
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	This is DPF by itself, i found it very interesting that it was blocked every next cell, in the chess pattern. Attached Images
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05-09-2016, 10:44 AM	#6
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	Cut open, bought some exhaust pipe 3'' to 2 1/2'' adapter and 45 degree bend for 12$ in autozone. And welded them into place. After that add as much mineral insulation as you can. On russian forums they call it resonator, but i believe it is very like muffler. Attached Images
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05-09-2016, 10:48 AM	#7
Lexx.md Second Lieutenant 42 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	Got a 12 pack and went to a friend who tig welded everything back using stainless steel rods. Yes it is not a perfect weld, but who cares, nobody will see it in next 5-10 years? What i have noticed that engine revs much faster, noise is at same level, which exactly i was looking for. And now you can start yell on me Attached Images
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05-09-2016, 11:17 AM	#8
Sti581 Second Lieutenant 43 Rep 241 Posts Drives: 2017 F80 ZCP 6MT M3 Join Date: Apr 2016 Location: Houston, TX iTrader: (1)	Can you finally hear turbo whistle? Or is that muffled down? I am debating ongoing aftermarket turbo back to get that whistle. But I don't want the cabin drone on the freeway from an open exhaust. Can you comment of yours and who ever has turbo back exhaust do you have cabin drone?
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05-09-2016, 01:19 PM	#12
Got_Diesel Second Lieutenant 20 Rep 297 Posts Drives: 335d Join Date: Dec 2012 Location: United States iTrader: (0)	How is the sound? Unonbtanium welding on Instagram has a few clips and you hear the whistle and the grunt but does it drone at highway speed? What does it sound like in cabin? __________________
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05-09-2016, 01:45 PM	#13
GaryE30 COAL FED 74 Rep 299 Posts Drives: 335d, M3, X5 Join Date: Feb 2015 Location: Easley, SC iTrader: (0)	Didn't bother to deburr those drilled holes and remove the sticker? __________________
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05-09-2016, 03:04 PM	#16
BB_cuda Brigadier General 796 Rep 3,572 Posts Drives: 2011 335D Msport, 2013 X5D Join Date: Nov 2011 Location: Clear Lake, Texas iTrader: (0)	From post #4, the DOC is shown. You make comment of "tough to get through". Did you remove the DOC as well? There have been one or 2 that I know of that gutted the filter portion of the DPF but left the DOC alone for smell purposes. They also just welded the shell back shut without putting in the perforated tube that you added along with insulation. That is original I'll have to say. Since you added the tube to the DPF, did you do the same with the SCR or it is just a hollow enclosure now?
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05-09-2016, 03:18 PM	#18
atwal187 First Lieutenant 53 Rep 347 Posts Drives: bmw 335d e90 2009 Join Date: Dec 2013 Location: bc canada iTrader: (0)	what tools did you use to remove the actual dpf and to cut into the dpf outer ?
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05-09-2016, 07:42 PM	#22
Sti581 Second Lieutenant 43 Rep 241 Posts Drives: 2017 F80 ZCP 6MT M3 Join Date: Apr 2016 Location: Houston, TX iTrader: (1)	Ok this is a joke. Come on now guys we are grown adults. No one is a hack job for leaving a sticker that is going to melt away with heat over time. Lol. This is so childish. I am thankful he started this thread to show us the work involved. Kudos to him. This is a helpful thread and I wouldn't discount it. Keep up the good work sir.
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