[gdaddy28]

Originally Posted by liuaar

You installed the AA catted? Are you running a stock exhaust?

I have the AWE, cannot wait to see how they pair together

Stock exhaust. AA catted downpipe!

[GD1981]

Originally Posted by P_Leotardo

What about rolling speeds. Was the car much quicker from 60-100/120?

Here are a few 60-110 Dragy pulls.
The first is just JB4, Map 3 on E30
The second is JB4, Map 5, AA DP, MST intake on E30

The MST Intake does next to nothing, but the AA DP clearly added more oomph

[mike@x-ph.com]

Originally Posted by GD1981

Here are a few 60-110 Dragy pulls.
The first is just JB4, Map 3 on E30
The second is JB4, Map 5, AA DP, MST intake on E30

The MST Intake does next to nothing, but the AA DP clearly added more oomph

Awesome, thank you for comparing power after each mod

[RawDog]

Originally Posted by G_B58

Haven't really tested that, but it definitely feels peppier from off the line or from a roll. It's probably the only mod that doesn't have any downside (except grey area for warranty and possible extra stress on the turbo).
Are u on the fence about getting one or just curious bout the numbers?

What extra stress on the turbo would the AA catted DP have?

[mike@x-ph.com]

Originally Posted by AlaskanAlien

What extra stress on the turbo would the AA catted DP have?

It won't add any, its reduces the backpressure since its better flowing than the stock downpipe

[jp0319]

Originally Posted by AlaskanAlien

What extra stress on the turbo would the AA catted DP have?

Yeah, I was questioning that comment as well... In my mind it would actually decrease the stress on the turbo. Reducing backpressure means the turbo doesn't have to work as hard at a given RPM as it would normally with a stock DP.

My curiosity lies in weather or not a DP will somehow trigger the flag at the dealer. According to what I've read on here the modded flag can be triggered based upon increased PSI, or acceleration values in the system? I'd think a down pipe would do that but I'm not sure.

[RawDog]

Originally Posted by jp0319

Yeah, I was questioning that comment as well... In my mind it would actually decrease the stress on the turbo. Reducing backpressure means the turbo doesn't have to work as hard at a given RPM as it would normally with a stock DP.

My curiosity lies in weather or not a DP will somehow trigger the flag at the dealer. According to what I've read on here the modded flag can be triggered based upon increased PSI, or acceleration values in the system? I'd think a down pipe would do that but I'm not sure.

Meh just take It off. Atleast it won’t throw any codes they can see

[mike@x-ph.com]

Originally Posted by jp0319

Yeah, I was questioning that comment as well... In my mind it would actually decrease the stress on the turbo. Reducing backpressure means the turbo doesn't have to work as hard at a given RPM as it would normally with a stock DP.

My curiosity lies in weather or not a DP will somehow trigger the flag at the dealer. According to what I've read on here the modded flag can be triggered based upon increased PSI, or acceleration values in the system? I'd think a down pipe would do that but I'm not sure.

It wont trigger a code and if it did (it wont ), Active will replace the downpipe

[k4sh_90]

Installed the AA downpipe on my car. I also fitted the Dinan intake as part of the install.

Quick remarks on the downpipe/exhaust combination: man this thing is a effing HOOT! My car lost most of its sport mode luster after the /2021 software update; it's all back and then some. I haven't been able to grab sound clips yet, but I'm definitely going to be working on getting some tomorrow.

Having the intake in the mix adds whooshing prior to the bombastic exhaust note now. Car is entirely an aural experience.

[BMWRNMD]

Originally Posted by v_ckash623

Installed the AA downpipe on my car. I also fitted the Dinan intake as part of the install.

Quick remarks on the downpipe/exhaust combination: man this thing is a effing HOOT! My car lost most of its sport mode luster after the /2021 software update; it's all back and then some. I haven't been able to grab sound clips yet, but I'm definitely going to be working on getting some tomorrow.

Having the intake in the mix adds whooshing prior to the bombastic exhaust note now. Car is entirely an aural experience.

In comfort is the cabin pretty quiet like with the stock exhaust/downpipe?

And in sport mode, does the cabin noise get much louder? Also is it a lot more loud on cold start compared to exhaust?

Are there any pops/burbles with that combo? (I know to get that it also requires a tune).

[mike@x-ph.com]

Originally Posted by v_ckash623

Installed the AA downpipe on my car. I also fitted the Dinan intake as part of the install.

Quick remarks on the downpipe/exhaust combination: man this thing is a effing HOOT! My car lost most of its sport mode luster after the /2021 software update; it's all back and then some. I haven't been able to grab sound clips yet, but I'm definitely going to be working on getting some tomorrow.

Having the intake in the mix adds whooshing prior to the bombastic exhaust note now. Car is entirely an aural experience.

Nice, im glad you like it

[k4sh_90]

Originally Posted by BMWRNMD

In comfort is the cabin pretty quiet like with the stock exhaust/downpipe?

And in sport mode, does the cabin noise get much louder? Also is it a lot more loud on cold start compared to exhaust?

Are there any pops/burbles with that combo? (I know to get that it also requires a tune).

I honestly forgot how the stock exhaust sounds since installing the Dinan, so my impressions will be based on that. Overall in comfort, you wouldn't know there was a downpipe modification. You get some pops here and there, which wasn't a thing with the stock downpipe. But it's mostly the experience I was familiar with in terms of cabin noise.

Sport mode is where the real change is noticed. Exhaust gets much more lively, throaty and punchy, with more pronounced pops and burbles on let off. It's what the Dinan used to sound like before the /2021 software updates. I've coded ASD off as to only get the actual exhaust noise in the cabin, and boy is there exhaust noise.

Cold start is more or less identical. I haven't noticed any difference.

Again, these are my impressions with the Dinan exhaust in play. The exhaust is amazing at pulling off a split personality with through its design with the valves. The downpipe really makes the split more defined. It's well worth it in my book.

[k4sh_90]

Here's a sound comparison between the two pipes on cold start:

[k4sh_90]

I didn't tighten the exhaust clamp well on the install, so the rattle you hear is that. Gonna fix that later this afternoon.

[BayM340]

Originally Posted by v_ckash623

I honestly forgot how the stock exhaust sounds since installing the Dinan, so my impressions will be based on that. Overall in comfort, you wouldn't know there was a downpipe modification. You get some pops here and there, which wasn't a thing with the stock downpipe. But it's mostly the experience I was familiar with in terms of cabin noise.

Sport mode is where the real change is noticed. Exhaust gets much more lively, throaty and punchy, with more pronounced pops and burbles on let off. It's what the Dinan used to sound like before the /2021 software updates. I've coded ASD off as to only get the actual exhaust noise in the cabin, and boy is there exhaust noise.

Cold start is more or less identical. I haven't noticed any difference.

Again, these are my impressions with the Dinan exhaust in play. The exhaust is amazing at pulling off a split personality with through its design with the valves. The downpipe really makes the split more defined. It's well worth it in my book.

Thank you for taking the time to do a detailed write-up, and a video of the sound. I'm running the MPE, not Dinan, and was specifically concerned about the cold start difference as its already loud. Given the DP doesn't add that much to the noise with decent aftermarket pipes, I think it might be time...

[k4sh_90]

Originally Posted by BayM340

Thank you for taking the time to do a detailed write-up, and a video of the sound. I'm running the MPE, not Dinan, and was specifically concerned about the cold start difference as its already loud. Given the DP doesn't add that much to the noise with decent aftermarket pipes, I think it might be time...

No doubt, glad I was able to help. If you've any other questions, feel free to ask.

[mike@x-ph.com]

The price of this downpipe is going up in 10 days by $100; if you are on the fence, now is the best time to place your orders.

[bese60]

Originally Posted by mike@x-ph.com

The price of this downpipe is going up in 10 days by $100; if you are on the fence, now is the best time to place your orders.

Ugh :|

Is it in stock and $1329 the best price? On fence just ponying up a little more for AWE exhaust.

[iPetey]

My AA Downpipe has a CEL here and there. I usually have to reset it via jb4.

[mike@x-ph.com]

Originally Posted by bese60

Ugh :|

Is it in stock and $1329 the best price? On fence just ponying up a little more for AWE exhaust.

dm sent

[ventjock]

Originally Posted by mike@x-ph.com

dm sent

can you send me a DM too? Interested in the AA down pipe as well

[mike@x-ph.com]

Originally Posted by ventjock

can you send me a DM too? Interested in the AA down pipe as well

Done