[hufington]

Originally Posted by XxChiliPalmerxX

I feel as though it is giving me a bit more power.. I did not save it on Dragy, but the 0-60 time was 3.5s, and someone else posted his results at 3.6s.

Thanks. You do not sound very enthused about the amount of extra power though.

[weinerbarn]

Originally Posted by XxChiliPalmerxX

I feel as though it is giving me a bit more power.. I did not save it on Dragy, but the 0-60 time was 3.5s, and someone else posted his results at 3.6s.

Those are stock X5M Comp numbers so ... I think you're getting a bit more power

[XxChiliPalmerxX]

Originally Posted by hufington

Thanks. You do not sound very enthused about the amount of extra power though.

LOL! Yes, I do like the power. As soon as I had the car delivered, I was installing it, so it seems normal to me.

[XxChiliPalmerxX]

Strike One - have to find another shop

Well, I went to a mechanic that can do custom exhaust, but think they got a little cold feet. They were unsure about the flapper, and removing the exhaust insert in the bumper.

1. They were thinking if they removed the flapper, it would through an engine code. I was pretty sure it would not, but wanted to confirm.

2. To remove the exhaust insert, they were thinking it was part of the heat shield as well, so thought they had to drop the bumper to remove it all? Also thought the bumper would melt if the removed the shielding?

[elite-fusion]

@hufington, will these do the job?
https://a.co/d/3kaIrYS

[XxChiliPalmerxX]

Originally Posted by elite-fusion

@hufington, will these do the job?
https://a.co/d/3kaIrYS

I believe that these are the ones that Huffington bought, but he mentioned he purchased in chrome and had them powder coated.

https://www.ebay.com/itm/264163523600

[hufington]

Originally Posted by elite-fusion

@hufington, will these do the job?
https://a.co/d/3kaIrYS

Originally Posted by XxChiliPalmerxX

I believe that these are the ones that Huffington bought, but he mentioned he purchased in chrome and had them powder coated.

https://www.ebay.com/itm/264163523600

Ebay ones are the ones I purchased.

[hufington]

Originally Posted by XxChiliPalmerxX

Strike One - have to find another shop

1. They were thinking if they removed the flapper, it would through an engine code. I was pretty sure it would not, but wanted to confirm.

2. To remove the exhaust insert, they were thinking it was part of the heat shield as well, so thought they had to drop the bumper to remove it all? Also thought the bumper would melt if the removed the shielding?

I would stay away from them as they sound not very knowledgeable to say the least.

1. No codes when removed.
2. Everything there can be removed pretty easily if you know what you are doing. The exhaust insert is part of the bumper that can be taken off easily when the car is on the lift. The heat shield is not a part of it. Removing the bottom plastic covers makes it easier to reach.

[XxChiliPalmerxX]

Originally Posted by hufington

I would stay away from them as they sound not very knowledgeable to say the least.

1. No codes when removed.
2. Everything there can be removed pretty easily if you know what you are doing. The exhaust insert is part of the bumper that can be taken off easily when the car is on the lift. The heat shield is not a part of it. Removing the bottom plastic covers makes it easier to reach.

That’s what I was thinking, but wanted to be positive. I will be looking for another place to have this done. Thank you!

[aleksy]

elite-fusion
Hey, would you mind sending me video of how your car sounds like? (none of the links of your exhaust sound you posted are working), I have the same model as you 2019 x5 50i with resonator deleted and valves permanently opened, and latest update. I have a feeling mine doesn’t sound as good as yours.

[XxChiliPalmerxX]

Upgrade coming on the 22nd, cannot wait to update everyone!!

[XxChiliPalmerxX]

Had to share, will get some sound clips a bit later, but sounds like a BEAST!!

[hufington]

Originally Posted by XxChiliPalmerxX

Had to share, will get some sound clips a bit later, but sounds like a BEAST!!

Congrats! Looking good and I know that it sounds good as well!

[yoandry]

Here are my thoughts on different setup and I'm still testing other options.

1st Video: I first started with resonator deleted with straight pipe, flaps opens.
2nd Video: Then I added Active Catted downpipes to the mix above. Cold start went louder and more raspy from 3k to 5k RPM.
3rd Video: Then I went yesterday and changed the resonator/straight pipe for an X pipe. Now cold start is quieter than stock actually, I haven't hear it well yet on the road but its just a little better than stock. not happy at all.
4: Now, I'm thinking on putting back the stock resonator and I thing it will yield better sound than the X pipe with DPs as the US resonators are 2 straight pipes together with baffle holes.

1st Stock DP + Straight Pipe

2nd AA Catted DP + Straight Pipe

3rd AA Catted DP + X Pipe

4th AA Catted DP +Stock resonator back
https://youtube.com/shorts/uaHf5HyUR4s

[SocietyDisillusioned]

We’re all three with muffler deletes as well? The first video reminded me of a mercedes engine m278 or m157 AMG with: DP Xpipe resonator delete straight pipe with muffler delete

[yoandry]

Originally Posted by SocietyDisillusioned

We’re all three with muffler deletes as well? The first video reminded me of a mercedes engine m278 or m157 AMG with: DP Xpipe resonator delete straight pipe with muffler delete

No man, I didnt said anything about muffler delete. All those are with stock muffler. Only with DP and resonator.
And the best so far, at lease for me is with the AA catted DP and stock resonator back. The X pipe didnt really improved anything. Video coming soon.

[SocietyDisillusioned]

Originally Posted by yoandry

No man, I didnt said anything about muffler delete. All those are with stock muffler. Only with DP and resonator.
And the best so far, at lease for me is with the AA catted DP and stock resonator back. The X pipe didnt really improved anything. Video coming soon.

That’s why I was asking, when I see straight pipe and resonator delete I assumed it was muffler delete since many in the MB forums would post that way. Sounds killer though, and curious what a resonator delete with Xpipe and muffler delete would sound like. Love the driver feel of a BMW, but miss the raw Mercedes biturbo V8 sound. If I can obtain that then the best of both worlds.

[Swerd430]

Just got this done today on my ‘21 M50 and I love it. Rasp is awesome and sounds great all around especially in Sport+ butttttt I want more.

[Apue]

Originally Posted by 888RRE

Resonator delete is enough, if your in Sydney, i highly recommend Lamros Kouriefs from HiTech Mufflers in Sydney.

The resonator delete makes a huge difference.

I wonder if it will reduce the power or more fuel consumption.
Google says so.
"A resonator delete can also reduce your engine efficiency. It affects the back pressure of the exhaust gases, which may amount to more fuel consumption."

I'm also in Sydney, I'm tempted to remove the resonator or muffler.

[Cruise'n]

Originally Posted by Ninefourteener

So.... I've just watched a TON of videos.... and I think I'm ready to take the plunge on this. Honestly, I'm not crazy about the "pops and crackles" I'm hearing with straight pipes, and I'm not looking for the "raspiness" generally associated with X-pipes either..

With that said.... I'm going to go with an old-school H-pipe, and hopefully get more of a deeper "muscle car" sound, versus a modern European sound.

Nothing against anyone else's personal choices.... but I think an H-pipe is best for me.

I know the pipes are 3" ID..... but can anyone tell me about how LONG the resonator is? X pipes are so popular now, but H pipes are tougher to find, so I need to make sure I get one long enough to replace the resonator.

Anyone have their resonator removed, that can take a quick length measurement for me please?

Have you installed the H pipes yet?
I agree with all your comments.
Thinking pops and rasp make the car sound really cheap, yes in my opinion only.
Want too hear the muscle car V8 sound too, yes please

[Cruise'n]

Originally Posted by Ninefourteener

Video is uploading to YouTube as we speak. Will post in a few minutes.

US spec (no OPF sensors or secondary cats) Stock downpipes, stock muffler with flapper valves welded open permanently.

Resonator deleted. Custom 3" double H-pipe installed, with cross sections 12" apart from one another. Cold start.

Happy with tone.. very rumbly and low
Happy with the lack of crackles and pops (I don't care for that)
Not as happy with "volume". I expected more. Barely noticeable inside the car. Zero drone whatsoever.
Noticeable 800-2000 rpms.... and at full acceleration. Otherwise, no difference in volume from stock.

https://youtu.be/sSGjuR8oMxM

That sounds so so so so much better.
H is the way.
Pity as you said with volume.. Can't just turn the car sound up like I do with my phone 🤳

[cobramite]

X5/X6 M50i is a 3.8-3.9 second 0-60 vehicle.
There is absolutley no way in hell a resonator delete or a Catback system reduces that to a 3.5. Ain't happenin. 3 or 4 tenths when you are already under 4 seconds is HUGE.