Help! Downpipe gasket

GA/\/\/\/\A_CT · 07-21-2021, 08:25 AM

Hi,

I just got my AA catted Downpipe, and it’s beautiful, but they forgot to include the gasket! This is for 2016 340xi.

Is the gasket a part I can find at a local parts store? Or do I need the specific one from AA? I don’t want to experiment, since labor is expensive...but if there is a universal part that is a no-brainer of a replacement I’d do that.

Is there a universal downpipe gasket that works perfectly? If so, any hint on where to get and what to ask for (part number? Or measurement and martial requirement that is needed?

weehe126 · 07-21-2021, 08:55 AM

Everyone just transfers the one from the stock dp to the new dp. Otherwise you need to get it from a dealer ECS/FCP

e_b_d_i · 07-21-2021, 10:13 AM

Related question about the Akrapovic DP: does anyone know if any sort of gasket is supposed to be used? It doesn't have the recessed ring like stock, so I just installed it without one, but it always bothers me . . .

G.Newt · 07-21-2021, 11:45 AM

Why not contact AA and have them send you a new gasket? Their customer service is good I hear.

And labor to install a downpipe shouldn't be that much lol.

dmanb2b · 07-21-2021, 06:41 PM

They didn't forget to include a gasket unless you specifically ordered a gasket. DPs don't come with a new gasket. If you want new, dealer usually has them in stock.

GA/\/\/\/\A_CT · 07-23-2021, 07:07 PM

Just to update you all, I called AA and they said the gasket is pre-installed on all their downpipes. We looked and there it was! Their service is great and the DP itself was beautifully made.

The sound is the best part. The car feels more responsive, too.

Info@mad-us.com · 07-26-2021, 06:40 PM

For anyone else that needs one it is an oem part that can be ordered online or by the dealer.

part number #18328612538

sspade · 07-26-2021, 07:05 PM

Right. How exactly this type of gasket comes pre installed on a downpipe baffles me... I will reserve judgement since I have never owned an AA downpipe but my offhand thought is that OP is trippin'

Edit: looks like it comes packaged separately from their website.

weehe126 · 07-26-2021, 08:39 PM

Quote:

Originally Posted by sspade

Right. How exactly this type of gasket comes pre installed on a downpipe baffles me... I will reserve judgement since I have never owned an AA downpipe but my offhand thought is that OP is trippin'

There is a groove in the dp for it. You literally have to pick it out of the stock dp to reuse it.

GA/\/\/\/\A_CT · 07-27-2021, 07:23 PM

Call AA and ask them. They now affix they gasket to the downpipe.

fLatLinE- · 07-28-2021, 08:46 AM

Quote:

Originally Posted by e_b_d_i

Related question about the Akrapovic DP: does anyone know if any sort of gasket is supposed to be used? It doesn't have the recessed ring like stock, so I just installed it without one, but it always bothers me . . .

Yeah I noticed the same thing with my Akrapovic DP as well as I bought a gasket expecting to replace it but there was no where to put it. My mechanic wasn't too concerned as he said that was the best fitting DP he did. I trust that akra knows what they are doing

Info@mad-us.com · 07-28-2021, 06:46 PM

Quote:

Originally Posted by sspade

Right. How exactly this type of gasket comes pre installed on a downpipe baffles me... I will reserve judgement since I have never owned an AA downpipe but my offhand thought is that OP is trippin'

Edit: looks like it comes packaged separately from their website.

Just guessing here but its probably to eliminate any issues of a damaged gasket during shipping as they are very fragile. We would do the same to avoid any issues.

sspade · 07-28-2021, 07:00 PM

Quote:

Originally Posted by Info@mad-us.com

Just guessing here but its probably to eliminate any issues of a damaged gasket during shipping as they are very fragile. We would do the same to avoid any issues.

Fair enough. Seems like it would have fallen out then when OP was unboxing, getting it installed and finally assuming it was missing. Then voila... it was pre installed. Mind you, this is not a rubber gasket that would stick in place... these paper ones will not stick in place and actually slightly expand when heated.

Just busting balls overall but that was my interpretation. All I know is... good on AA for including an OEM gasket. Only aftermarket brand that Ive seen do that, even though original gasket is reusable at least once in almost every circumstance.

e_b_d_i · 07-29-2021, 12:38 AM

Quote:

Originally Posted by fLatLinE-

Quote:

Originally Posted by e_b_d_i

Related question about the Akrapovic DP: does anyone know if any sort of gasket is supposed to be used? It doesn't have the recessed ring like stock, so I just installed it without one, but it always bothers me . . .

Yeah I noticed the same thing with my Akrapovic DP as well as I bought a gasket expecting to replace it but there was no where to put it. My mechanic wasn't too concerned as he said that was the best fitting DP he did. I trust that akra knows what they are doing

Word, thanks for the reply. I put it in myself (that was a long day) and only noticed/remembered the gasket I'd bought afterwards. After partially disassembling and comparing with stock I figured I didn't need one, but I was always a little worried I might have missed something.

GA/\/\/\/\A_CT · 07-29-2021, 02:36 PM

Quote:

Originally Posted by Info@mad-us.com

Just guessing here but its probably to eliminate any issues of a damaged gasket during shipping as they are very fragile. We would do the same to avoid any issues.

That is exactly the rationale behind AA’s decision to start pre-installing the gaskets

07-21-2021, 08:25 AM	#1
GA/\/\/\/\A_CT Lieutenant 217 Rep 584 Posts Drives: ‘20 m340ix Join Date: Jan 2018 Location: CT iTrader: (0)	Help! Downpipe gasket - universal part? Hi, I just got my AA catted Downpipe, and it’s beautiful, but they forgot to include the gasket! This is for 2016 340xi. Is the gasket a part I can find at a local parts store? Or do I need the specific one from AA? I don’t want to experiment, since labor is expensive...but if there is a universal part that is a no-brainer of a replacement I’d do that. Is there a universal downpipe gasket that works perfectly? If so, any hint on where to get and what to ask for (part number? Or measurement and martial requirement that is needed?
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07-21-2021, 08:55 AM	#2
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	Everyone just transfers the one from the stock dp to the new dp. Otherwise you need to get it from a dealer ECS/FCP
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07-21-2021, 10:13 AM	#3
e_b_d_i Enlisted Member 18 Rep 49 Posts Drives: 340i Join Date: Feb 2021 Location: LA iTrader: (0)	Related question about the Akrapovic DP: does anyone know if any sort of gasket is supposed to be used? It doesn't have the recessed ring like stock, so I just installed it without one, but it always bothers me . . . __________________ 2018 340i
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07-21-2021, 11:45 AM	#4
G.Newt Major 811 Rep 1,452 Posts Drives: CT4-V Blackwing 6MT Join Date: Feb 2017 Location: CO -> TX iTrader: (0)	Why not contact AA and have them send you a new gasket? Their customer service is good I hear. And labor to install a downpipe shouldn't be that much lol. __________________ 2022 CT4-V Blackwing 6-speed SOLD: 2016 340i xDrive 6-speed DAW v2.5 turbo E40 \| Dorch S2 \| VRSF DP \| MST intake \| AWE catback \| 335is clutch \| CSF heat exchanger \| RK Autowerks intake manifold \| Orange M Perf Brake Kit \| KW Street Comfort coilovers \| GTS taillights V2
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07-21-2021, 06:41 PM	#5
dmanb2b Banned 2123 Rep 3,368 Posts Drives: G07, F97, F30, E90, E46, E30 Join Date: Jul 2016 Location: NY iTrader: (5)	They didn't forget to include a gasket unless you specifically ordered a gasket. DPs don't come with a new gasket. If you want new, dealer usually has them in stock.
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07-23-2021, 07:07 PM	#6
GA/\/\/\/\A_CT Lieutenant 217 Rep 584 Posts Drives: ‘20 m340ix Join Date: Jan 2018 Location: CT iTrader: (0)	Just to update you all, I called AA and they said the gasket is pre-installed on all their downpipes. We looked and there it was! Their service is great and the DP itself was beautifully made. The sound is the best part. The car feels more responsive, too.
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07-26-2021, 06:40 PM	#7
Info@mad-us.com BimmerPost Supporting Vendor 1907 Rep 4,898 Posts Drives: bmw Join Date: Mar 2021 Location: Mad-us.com iTrader: (0)	For anyone else that needs one it is an oem part that can be ordered online or by the dealer. part number #18328612538 __________________ - Click Here Performance Parts For Your Bmw At Crazy Low Prices! Email: info@mad-us.com
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07-26-2021, 07:05 PM	#8
sspade Major General 2465 Rep 5,457 Posts Drives: F30 Join Date: Oct 2017 Location: Stevenson, WA iTrader: (3) Garage List 2016 BMW 320i [7.87] 2014 BMW 328i [6.83]	Right. How exactly this type of gasket comes pre installed on a downpipe baffles me... I will reserve judgement since I have never owned an AA downpipe but my offhand thought is that OP is trippin' Edit: looks like it comes packaged separately from their website. Attached Images
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07-27-2021, 07:23 PM	#10
GA/\/\/\/\A_CT Lieutenant 217 Rep 584 Posts Drives: ‘20 m340ix Join Date: Jan 2018 Location: CT iTrader: (0)	Call AA and ask them. They now affix they gasket to the downpipe.
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