[Rocket455]

UPDATE
Issues with the exhaust have been resolved. I had absolutely no idea that selection made in the sound menu (below) actually had an effect on the flaps. I had thought this exclusively controlled the ASD through the speakers. I had this on "Reduced" mode and the flaps would not open even in Sport Plus. Switching to Sporty opened the flaps and it sounds exactly like what it's supposed to.



Here's what the current setup sounds like (doesn't do justice to how it sounds like in person; the intake noises are way more aggressive when heard from outside the vehicle):

Extended clip (first half with windows up, second half with windows down).

Exhaust setup:

Just had the Dinan axle-back installed, resonator delete w/custom x-pipe. The goal was a sportier exhaust note from this glorious V8, but sorely disappointed with this setup. Aware that Dinan is more subtle than the other offerings, and the axle-back alone wouldn’t really do much, but had figured that pairing this with the res delete and x-pipe would wake up the exhaust note a bit; I was very wrong. Can hardly tell the difference between the stock setup and this (Sport + mode all day), so much so that I’m not even going to bother posting a video. Can’t even conclusively say that it’s louder or more aggressive by any measure at all, and confirmed by friends/colleagues who had listened to both. Zero bangs and pops, but that was the case when stock as well (is that an LCI thing?). Not worth a single dollar spent on this and will be looking for other setups. All the research I did pointed me in this direction, but to be fair, all the data was from pre-2022 models. Previous vehicle was a 2020 M340i with MPE, and that thing sounded incredible.

Also: the tips stick out way too far (as you can see), the whole thing looks goofy. My regular shop has done over 15 custom performance exhaust setups for me over as many years, but the guys told me that the adjustable tips just couldn’t be pushed further back despite them trying all sorts of things…the only solution they said was to start chopping...

CTS intake:

Now this was money well-spent. With all that cladding removed, you can really hear all sorts of turbo sounds coming from this thing, sounds like a jet. If I had to decide between exhaust or the intake, the latter all the way! Definitely compensates for the disappointing exhaust set up.

[Manley00]

Good lord that is HIDEOUS! Where did you purchase the exhaust setup from? I’d reach out- that is absurd. On many different levels.

Now the intake- regardless of power, I absolutely LOVE the additional noise. Good choice 😁

[Sam_M550i]

Something doesn't add up. Should hear a difference for sure and they shouldn't stick out that far. Sure installed correctly?

[jsherwood275]

This is my Dinan exhaust. I had it installed by a dinan authorized dealer and the tips were installed properly. Yours seems to be installed incorrectly. The outside tips should not extend beyond the inner tips.

[Dinan_Engineering]

Originally Posted by Rocket455

Exhaust setup:

The goal was a sportier exhaust note from this glorious V8, but sorely disappointed with this setup. Aware that Dinan is more subtle than the other offerings, and the axle-back alone wouldn’t really do much, but had figured that pairing this with the res delete and x-pipe would wake up the exhaust note a bit; I was very wrong. Can hardly tell the difference between the stock setup and this (Sport + mode all day), so much so that I’m not even going to bother posting a video. Can’t even conclusively say that it’s louder or more aggressive by any measure at all, and confirmed by friends/colleagues who had listened to both. Zero bangs and pops, but that was the case when stock as well (is that an LCI thing?). Not worth a single dollar spent on this and will be looking for other setups. All the research I did pointed me in this direction, but to be fair, all the data was from pre-2022 models. Previous vehicle was a 2020 M340i with MPE, and that thing sounded incredible.

Also: the tips stick out way too far (as you can see), the whole thing looks goofy. My regular shop has done over 15 custom performance exhaust setups for me over as many years, but the guys told me that the adjustable tips just couldn’t be pushed further back despite them trying all sorts of things…the only solution they said was to start chopping...

Yikes. Something is definitely amiss. The tips aren't offset and are sticking out much too far. Should be more in line with Sherwood's photos. I'd be curious to see a shot of the underside and see where the installer cut / how the generic x-pipe is laid out. My suspicion is that with however the x-pipe was done is forcing the shifted location of the axleback (different cut point or something) and the only way to resolve it is by chopping one side or the other and making a custom mating joint. The Dinan axleback / Dinan X are built around the factory cut points so there shouldn't be an issue unless the factory cut dimple location were not used for one or the other. Could be some other things as well but ultimately some photos of the underside will help clear some of the mystery up. Would suggest getting some of those photos and contacting the support folks at 1-800-341-5480 so they can assist in troubleshooting.

Sound wise, again there should be a noticable delta. There is only a slight tone change from stock to the setup w/ valves closed but with valves open there is a pretty large jump in tone and volume. If you are not getting any of that no matter the mode I would first look at the valve actuators to make sure they are plugged in / operating correctly as my first guess would be the valves are always closed for whatever the reason (not plugged in/faulty/etc.). Like fitment some photos of the underneath install may be able to answer/clear up some of those questions.

[Boosted_8]

My bet is that is fitted all kinds of wrong with the valves shut & disconnected.

[Rocket455]

Thanks for the feedback everyone. I agree, something went really wrong during the install, this shouldn't sound the way it is and those tips look ridiculous. Car's going back soon so I can get underneath this thing myself. Will involve Dinan support as needed. I'll keep you guys posted.

[Joe-BMW33]

So you have the Dinan Axle Back and the Dinan high flow mid pipe, right? I have both is those which is effectively a cat back and I also have the Dinan valve remote.

I can confirm on my setup there is a huge difference in sound over stock. Something is wrong. Now if you want cracks, pops and bangs, Dinan isn't for you. It's not designed to do that. It's designed for customers like me who just want a smooth growl and engineered sound. I definitely get crackles on a hard downshift. I personally can't stand that machine gun crap, I think it sounds like shit, like the car is misfiring.

Your system definitely wasn't installed right. I wonder if your flaps are stuck closed.

[Rocket455]

Originally Posted by Joe-BMW33

So you have the Dinan Axle Back and the Dinan high flow mid pipe, right? I have both is those which is effectively a cat back and I also have the Dinan valve remote.

I can confirm on my setup there is a huge difference in sound over stock. Something is wrong. Now if you want cracks, pops and bangs, Dinan isn't for you. It's not designed to do that. It's designed for customers like me who just want a smooth growl and engineered sound. I definitely get crackles on a hard downshift. I personally can't stand that machine gun crap, I think it sounds like shit, like the car is misfiring.

Your system definitely wasn't installed right. I wonder if your flaps are stuck closed.

Just the Dinan axle-back w/res delete and generic x-pipe; no mid. Everything's pointing to incorrect install based on the lack of sound and goofy tip alignment (and all the feedback here), hope to take it back soon.

I personally love the gun shot sounds, but on the rare occasion I decide to behave like an adult for 5 minutes, I do like the option of toning it down by switching back to Comfort mode

[2022M550i]

Gun shots…lol

.

[Joe-BMW33]

Originally Posted by Rocket455

Just the Dinan axle-back w/res delete and generic x-pipe; no mid. Everything's pointing to incorrect install based on the lack of sound and goofy tip alignment (and all the feedback here), hope to take it back soon.

I personally love the gun shot sounds, but on the rare occasion I decide to behave like an adult for 5 minutes, I do like the option of toning it down by switching back to Comfort mode

Yeah, if your into the gunshots, you definitely should not be running any kind of X pipe, Dinan or homemade. You would have better sound by just straight pipes from the down pipes to the axle back. You probably should have gone Remus though out back for what you are looking for.

[2022M550i]

[Rocket455]

Originally Posted by Joe-BMW33

Yeah, if your into the gunshots, you definitely should not be running any kind of X pipe, Dinan or homemade. You would have better sound by just straight pipes from the down pipes to the axle back. You probably should have gone Remus though out back for what you are looking for.

I would have been fine without the gunshots to be honest (having them would be a plus to me), but a deeper exhaust tone was the priority. Let's see what it sounds like after the fix....got a Remus catback on order as well just to get ahead of the lead time in case the corrected Dinan setup still turns out to be too tame to the ears. Love me my share of First World problems....

[Joe-BMW33]

Originally Posted by Rocket455

I would have been fine without the gunshots to be honest (having them would be a plus to me), but a deeper exhaust tone was the priority. Let's see what it sounds like after the fix....got a Remus catback on order as well just to get ahead of the lead time in case the corrected Dinan setup still turns out to be too tame to the ears. [SIZE="1"]Love me my share of First World problems....[/SIZE]

Try the straight pipe resonator delete with the Dinan axle back. I think you may like it.

[Rocket455]

Updated with videos.

[jrstech]

Originally Posted by Joe-BMW33

So you have the Dinan Axle Back and the Dinan high flow mid pipe, right? I have both is those which is effectively a cat back and I also have the Dinan valve remote.

I can confirm on my setup there is a huge difference in sound over stock. Something is wrong. Now if you want cracks, pops and bangs, Dinan isn't for you. It's not designed to do that. It's designed for customers like me who just want a smooth growl and engineered sound. I definitely get crackles on a hard downshift. I personally can't stand that machine gun crap, I think it sounds like shit, like the car is misfiring.

Your system definitely wasn't installed right. I wonder if your flaps are stuck closed.

I recently installed the Dinan mid pipe and must say it’s a significant improvement in sport & plus. I do notice a slight amount of drone in idle in all modes, nothing excessive, but wasn’t expecting to hear any difference in comfort mode. Drone disappears completely at 1k RPM. Did you experience this as well? I made sure all clamps and fittings are correct and tight, and none of the pipes touching any part of the body.