[Patton250]

Please don’t laugh but what do resonators even do?

[barryc365]

Originally Posted by Patton250

Please don't laugh but what do resonators even do?

Reduce sound essentially. Maybe tune the sound before reaching the muffler. Potentially some back pressure? I'm not sure about that though!

Pretty pointless especially for an M car. How do the beards in Germany not realise the car is too quiet? Wake up lads!

[///MeraldCity_G82]

Originally Posted by McLaren720s

Just had my resonators deleted with an x-pipe and exhaust valves permanently open by shop.

Car sounds much better now and more alive. The burbles are more noticeable but not obnoxious.
The quality of the stock sound is nicely maintained just amplified

Should have came like this from factory because it's much more enjoyable and still not obnoxiously loud.

This also beats spending 3-4K for a full exhaust system since in my opinion this will be enough for most people without being annoyingly loud

Where did you get this done? Any pics?

[Ghozthunter]

Originally Posted by BSM_G808

Where did you get this done? Any pics?

Need pics and vid please

[Patton250]

Originally Posted by Ghozthunter

Need pics and vid please

Yes.

[McLaren720s]

Originally Posted by BSM_G808

Where did you get this done? Any pics?

Muffler King in Kirkland

[LukeM15]

Yes Videos pls

[TrentMeister]

Ghozthunter
LukeM15
Patton250

Look a few pages back, I have vids of that setup back there

[Ghozthunter]

The X is located in a different position to what I've seen so far, will take make a difference in sound?

[McLaren720s]

Originally Posted by Ghozthunter

The X is located in a different position to what I've seen so far, will take make a difference in sound?

I'm not sure but that's where the shop put it. The sound is super smooth during the entire rev range all the way to redline with zero rasp. So I'm not sure if the position matters

What bugs me slightly is that the color of the pipes are different, but I guess it's not like people look under the car.

I wonder if removing the secondary cats would add some rasp because that's definitely not something I want.

Another thing that keeps me from also removing the secondary cats is that, at some point, when going catless down pipes with tune, I'm afraid it will be even louder and might get too obnoxious for my taste .

[LukeM15]

Originally Posted by McLaren720s

I'm not sure but that's where the shop put it. The sound is super smooth during the entire rev range all the way to redline with zero rasp. So I'm not sure if the position matters

What bugs me slightly is that the color of the pipes are different, but I guess it's not like people look under the car.

I wonder if removing the secondary cats would add some rasp because that's definitely not something I want.

Another thing that keeps me from also removing the secondary cats is that, at some point, when going catless down pipes with tune, I'm afraid it will be even louder and might get too obnoxious for my taste .

The pipes all eventually will become the same color. Now depending on the material use on the attachments it could even Rust if it’s not coated metal only time will tell.

[TrentMeister]

Originally Posted by McLaren720s

I'm not sure but that's where the shop put it. The sound is super smooth during the entire rev range all the way to redline with zero rasp. So I'm not sure if the position matters

What bugs me slightly is that the color of the pipes are different, but I guess it's not like people look under the car.

I wonder if removing the secondary cats would add some rasp because that's definitely not something I want.

Another thing that keeps me from also removing the secondary cats is that, at some point, when going catless down pipes with tune, I'm afraid it will be even louder and might get too obnoxious for my taste .

Close your valves if you do cat delete.

All weekend I've been getting props for my setup

[///MeraldCity_G82]

Anyone know the diameter of the pipes on the mid section?

[McLaren720s]

Originally Posted by BSM_G808

Anyone know the diameter of the pipes on the mid section?

I believe they're 2.75"

[///MeraldCity_G82]

Originally Posted by McLaren720s

I believe they're 2.75"

Thanks just verified that this morning while changing the wheels.

[SickGTR]

Originally Posted by VonB

So for example if your engine blows will it be due to exhaust issues or something internal with the engine? Another example would be if you have something wrong with your suspension they cannot pin your downpipes due to the issue with your suspension. Now if you have an exhaust leak and your going in for warranty claim then that's where they can get you for your aftermarket downpipes.

Can you run aftermarket DP without a tune? Seems like if your going that route, you are tuning for sure?

[///MeraldCity_G82]

quick question for the people that did the secondary and both resonator deletes, as well the the people who deleted both resonators only.

Anyone getting drone at highway speeds on an incline in eco??? I don't care if it happens in sport as I can just switch to eco.

Getting mine done this Saturday!

[bmbob]

Originally Posted by BSM_G808

quick question for the people that did the secondary and both resonator deletes, as well the the people who deleted both resonators only.

Anyone getting drone at highway speeds on an incline in eco??? I don't care if it happens in sport as I can just switch to eco.

Getting mine done this Saturday!

My setup above. There is no drone in sport or sport plus, just sweet gargling sounds. Eco is very quiet, similar to no mods and if you dare press the exhaust button all the sound is gone however you would not need to do this at all if you were driving in eco, nor in sport IMO.

[warcity]

Originally Posted by bmbob

My setup above. There is no drone in sport or sport plus, just sweet gargling sounds. Eco is very quiet, similar to no mods and if you dare press the exhaust button all the sound is gone however you would not need to do this at all if you were driving in eco, nor in sport IMO.

Originally Posted by bmbob

[IMG]https://g80.bimmerpost.com/forums/pi...ictureid=81268[/IMG]
[IMG]https://g80.bimmerpost.com/forums/pi...ictureid=81269[/IMG]

My setup above. There is no drone in sport or sport plus, just sweet gargling sounds. Eco is very quiet, similar to no mods and if you dare press the exhaust button all the sound is gone however you would not need to do this at all if you were driving in eco, nor in sport IMO.

Now I'm tempted to remove my secondary res. For now I have just removed my primary res and secondary cat. What's another 300 bux :-)

[McLaren720s]

I have both resonators deleted with x-pipe and valves fully opened and I don't detect any noticeable drone.

I've contemplated deleting the secondary cats as well but I like the quality of the sound currently although sometimes I think it could be even louder. I also think that deleting the secondary cats might introduce rasp which I don't want.

[bmbob]

Originally Posted by McLaren720s

I have both resonators deleted with x-pipe and valves fully opened and I don't detect any noticeable drone.

I've contemplated deleting the secondary cats as well but I like the quality of the sound currently although sometimes I think it could be even louder. I also think that deleting the secondary cats might introduce rasp which I don't want.

There is no rasp, it's just very loud on WOT similar to a track exhaust. You can control this easily via the throttle though. IMO I think it's worth removing the secondary res with straights to see for yourself. The video's on this thread really helped but in person is different.. If you then think it's too loud (which I did the first 2 days), install an x or h and it will settle it down.

[dialogical]

Originally Posted by McLaren720s

I have both resonators deleted with x-pipe and valves fully opened and I don't detect any noticeable drone.

I've contemplated deleting the secondary cats as well but I like the quality of the sound currently although sometimes I think it could be even louder. I also think that deleting the secondary cats might introduce rasp which I don't want.

Hi! How noticeable are the pops and bangs with this setup?