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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications AA Catted DP

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      08-18-2022, 02:02 PM   #111
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Quote:
Originally Posted by k4sh_90 View Post
Ever see a Florida or Mississippi emissions inspection? It's kinda hard to because there isn't one. EPA might set federal standards, but it's up to the individual states to mandate and inspect for it. NYS also bans window tint on vehicles, but in other states you can spray paint all of the vehicle glass black and still put the vehicle on the road - it's all up to the states to decide what goes into a vehicle inspection. No EPA police is coming to knock down my door because of my aftermarket downpipe. I just drive to Goodyear once a year and wait an hour while the inspector plugs the inspection unit into my car's OBD port, does his safety check, and then slaps a sticker on my car saying it's good to go until next year. They can stare at the downpipe all they want, but as long as the car isn't producing a check engine light, everything is fine. Again, this is just for NY though. Experiences may vary by state.

There's no confusion here, pal. I'm just not peddling some tin foil hat theories about EPA "legality" on the engine modification section of a BMW owners forum.
Let me try to explain it by using an analogy:

Say your local law has a .08 BAC legal limit for driving under the influence.

If you are driving on a public road knowingly with a .10 BAC, are you breaking the law?

If you are driving on a public road unknowingly with a .10 BAC, are you breaking the law?

In both cases: yes. Despite the fact that you weren't caught by a police officer, the law was still broken.

Now, if you were told by the bartender at your bar that the local limit is .15 BAC, should the record not be set straight? You're being given wrong information about what is technically legal.

So, let's stick to the point here: despite the fact that your local law enforcement isn't effective in their enforcement does not mean the law isn't being broken.

However, if you know what the law is, and still decide to break it, that is 100% on you. But that concept is not what I am here trying to clarify or call out.

I have an issue with the bartender telling people wrong info.

No tinfoil hats being worn: a downpipe that removes the secondary cat is federally illegal for use in all 50 states regardless if the remaining cat is EPA legal. In most states it is also locally illegal. The emissions devices on the vehicle have been illegally altered.

Not looking to pick a fight here, and sorry if this info is hard for you to digest, but it isn't false.
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      08-18-2022, 02:22 PM   #112
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Quote:
Originally Posted by k4sh_90 View Post
They can stare at the downpipe all they want, but as long as the car isn't producing a check engine light, everything is fine. Again, this is just for NY though. Experiences may vary by state.
And pardon my follow up post here, but indeed NYS does have a visual component to their emissions inspection routine, it is not all done by the OBD port:

(i) Emissions control devices.
The following items must be inspected on vehicles subject to a low enhanced or OBD II emissions inspection, except that diesel-powered vehicles that are subject to the OBD II emissions inspection
shall not be inspected for items 1 through 8b. A vehicle must be inspected only for the items with which it was originally equipped by the manufacturer.

See this document:

https://dmv.ny.gov/forms/cr79.pdf
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      08-19-2022, 11:07 AM   #113
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Just remember cars dont need to be smogged until they are 7+ years old.
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      08-23-2022, 12:32 AM   #114
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I installed my AA downpipe this evening, the downpipe clamp was a pain in the butt to get off but once it was off, everything went smoothly. Took me 15 minutes to put the new downpipe on.

I'm noticing a nice louder exhaust note, quicker turbo spool and for whatever reason I can hear the blow off valve now. no cel, as advertised.
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      08-23-2022, 10:35 AM   #115
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Quote:
Originally Posted by whofelt View Post
I installed my AA downpipe this evening, the downpipe clamp was a pain in the butt to get off but once it was off, everything went smoothly. Took me 15 minutes to put the new downpipe on.

I'm noticing a nice louder exhaust note, quicker turbo spool and for whatever reason I can hear the blow off valve now. no cel, as advertised.
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      08-23-2022, 01:00 PM   #116
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For the Non catted AA DP does it have a bracket that bolts to oem locations? On their website it looks like only the catted DP has the bracket?
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      08-23-2022, 04:48 PM   #117
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Quote:
Originally Posted by bimmerstar View Post
For the Non catted AA DP does it have a bracket that bolts to oem locations? On their website it looks like only the catted DP has the bracket?
Im not sure as we do not offer the catless option, but I recommend checking with AA directly as they made a few changes during the years with the bracket.
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      09-14-2022, 05:17 PM   #118
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Quote:
Originally Posted by mike@x-ph.com View Post
Im not sure as we do not offer the catless option, but I recommend checking with AA directly as they made a few changes during the years with the bracket.
Hi Mike,

I am looking to place an order with you for the AA catted downpipe. Any chance I can receive it (California) before Monday? Expedited Shipping? I have appt on Monday for other installations. Thanks!

EDIT: As always Mike came through and had my order expedited. Mike is a wizard!
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Last edited by peelerec; 09-16-2022 at 03:59 PM..
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      01-24-2023, 07:21 PM   #119
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Quote:
Originally Posted by whofelt View Post
I installed my AA downpipe this evening, the downpipe clamp was a pain in the butt to get off but once it was off, everything went smoothly. Took me 15 minutes to put the new downpipe on.

I'm noticing a nice louder exhaust note, quicker turbo spool and for whatever reason I can hear the blow off valve now. no cel, as advertised.
is the car a lot louder? More pops and burbles (2020)?
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      01-25-2023, 10:21 AM   #120
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Quote:
Originally Posted by peelerec View Post
Hi Mike,

I am looking to place an order with you for the AA catted downpipe. Any chance I can receive it (California) before Monday? Expedited Shipping? I have appt on Monday for other installations. Thanks!

EDIT: As always Mike came through and had my order expedited. Mike is a wizard!
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      01-25-2023, 12:31 PM   #121
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If anyone is worried about passing inspection with the downpipe, NYS passed my car with no issue. Inspector even took it upon himself hit sport mode a bit.

Just know your state's process prior to purchase. And purchase through XPH - they're amazing.
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      01-26-2023, 10:06 AM   #122
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Quote:
Originally Posted by k4sh_90 View Post
If anyone is worried about passing inspection with the downpipe, NYS passed my car with no issue. Inspector even took it upon himself hit sport mode a bit.

Just know your state's process prior to purchase. And purchase through XPH - they're amazing.
Thank you
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      03-16-2023, 06:47 AM   #123
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Just ordered AA DP for my new M440 from Mike = always best price

I have the AA catted DP on my 2015 435 for years now (also from Mike) with no CEL & no problems with Emission Insp here in PA
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      03-16-2023, 09:58 AM   #124
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Quote:
Originally Posted by 1QuikWS6 View Post
Just ordered AA DP for my new M440 from Mike = always best price

I have the AA catted DP on my 2015 435 for years now (also from Mike) with no CEL & no problems with Emission Insp here in PA
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      03-16-2023, 05:33 PM   #125
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Just placed order today for mine. Thanks again mike@x-ph.com !!

Will update when it arrives and can be installed.
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      03-16-2023, 06:14 PM   #126
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Just placed order today for mine. Thanks again mike@x-ph.com !!

Will update when it arrives and can be installed.
My pleasure, thank you for your support
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      03-17-2023, 03:15 PM   #127
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Mine came yesterday. Now to decide to DIY or pay a shop. I got one quote and it's too damn high so I'm leaning toward DIY but have limited time and will probably spend $200 in equipment as my jack sucks.
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      03-17-2023, 04:06 PM   #128
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Quote:
Originally Posted by billnchristy View Post
Mine came yesterday. Now to decide to DIY or pay a shop. I got one quote and it's too damn high so I'm leaning toward DIY but have limited time and will probably spend $200 in equipment as my jack sucks.
Let us know how it goes
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      03-20-2023, 09:05 PM   #129
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Everybody seems to love this downpipe. And looks like it’s discounted right now but man it’s still a bit pricey. Do Bimmerpost members get more of a discount buying from mike?
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      03-21-2023, 07:33 AM   #130
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Quote:
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Everybody seems to love this downpipe. And looks like it’s discounted right now but man it’s still a bit pricey. Do Bimmerpost members get more of a discount buying from mike?
I have the MST Catted 6" high-flow cat DP and I can tell you I absolutely love it. Great sound and in over 1000 miles it has never thrown a CEL. I don't know that it's any cheaper than the AA DP but it is a great option if Mike can get them now.
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      03-21-2023, 06:43 PM   #131
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I have the MST Catted 6" high-flow cat DP and I can tell you I absolutely love it. Great sound and in over 1000 miles it has never thrown a CEL. I don't know that it's any cheaper than the AA DP but it is a great option if Mike can get them now.
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      04-01-2023, 01:56 PM   #132
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Installed my AA Downpipe today and it sounds so good with the AA exhaust. I'll post more when I can get some pulls but here is a start up clip and rev with valves open. Thanks again mike@x-ph.com !

https://www.reddit.com/user/Impressi...t=share_button
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