Deleted both resonators (video and pics)

Cars · 02-27-2017, 01:13 PM

Quote:

Originally Posted by Schnell B58

Quote:

Originally Posted by Cars

Deleted both resonators on friday and all I can say is WOW! This mod truly makes a wonderful difference. Don't even need to get an exhaust now. Best $200 I've ever spent!

https://www.youtube.com/watch?v=S5QcyAkAGkY

Sounds and looks great!

Thanks bro!

Cars · 02-27-2017, 01:16 PM

Quote:

Originally Posted by AlexM240i

Quote:

Originally Posted by Cars

Deleted both resonators on friday and all I can say is WOW! This mod truly makes a wonderful difference. Don't even need to get an exhaust now. Best $200 I've ever spent!

https://www.youtube.com/watch?v=S5QcyAkAGkY

Sounds amazing !

You don't need an exhaust system anymore ! Any drone so far ???

I'm wondering how the M240i MPE would sound with this resonator-delete setup.... Maybe more likely to drone since it doesn't have valve ??

Thanks!

Yeah I'm sure an mpe would make it sound amazing but the drone is what I'm afraid of. Well that and the $1300 with tips I could put towards other stuff lol. As of right now though, no drone whatsoever, and the overrun in sport mode is just amazing. Tons of pops all the way thru 5th gear. Gonna try to set up a GoPro and get some driving time for you guys to hear it.

evancross · 02-28-2017, 09:26 AM

I'm getting mine done today. I have an ER Catless Downpipe installed too so it will be interesting to see/hear the difference.

mpbruin108 · 02-28-2017, 11:58 AM

Quote:

Originally Posted by evancross

I'm getting mine done today. I have an ER Catless Downpipe installed too so it will be interesting to see/hear the difference.

Its good to see that even BMW sales consultants getting into the aftermarket downpipe game. I wish mine would get into that game. Then I might not worry so much about my CA flagging my car when I bring in my car.

42395_skyline · 02-28-2017, 01:19 PM

Quote:

Originally Posted by evancross

I'm getting mine done today. I have an ER Catless Downpipe installed too so it will be interesting to see/hear the difference.

Please post a video, I am looking to do the same but with different DP.

PYTran · 03-01-2017, 02:06 AM

Hey guys, I'm pretty new to the aftermarket scene but deleting a resonator requires cutting the resonators out and welding in a new resonator correct? So is this destructive and non-reversible? I'm on a lease but man I wish the B58 was louder.

AlexM240i · 03-01-2017, 06:07 AM

Quote:

Originally Posted by PYTran

Hey guys, I'm pretty new to the aftermarket scene but deleting a resonator requires cutting the resonators out and welding in a new resonator correct? So is this destructive and non-reversible? I'm on a lease but man I wish the B58 was louder.

Yes, you have to cut both resonators and get the pipe welded. You can always do the opposite process and install the resonators back.

I wouldn't worry about it. I'ts just a tube after all....

Cars · 03-01-2017, 03:26 PM

Quote:

Originally Posted by PYTran

Hey guys, I'm pretty new to the aftermarket scene but deleting a resonator requires cutting the resonators out and welding in a new resonator correct? So is this destructive and non-reversible? I'm on a lease but man I wish the B58 was louder.

I'm on a lease as well. Do it. You will not regret it man, I'm telling you. The sound is 100% better, hands down. I kept the resonators just in case I don't buy the car at lease end.

PeterWT · 03-01-2017, 04:37 PM

Quote:

Originally Posted by AlexM240i

Sounds amazing !

You don't need an exhaust system anymore ! Any drone so far ???

I'm wondering how the M240i MPE would sound with this resonator-delete setup.... Maybe more likely to drone since it doesn't have valve ??

The lack of a valve shouldn't matter. The valve is only closed during cold start. After warm up it stays open.

Vyruz Reaper · 03-01-2017, 07:00 PM

anywhere to do this in OC Socal area?

PeterWT · 03-01-2017, 07:15 PM

I'd like to hear it with just the front resonator removed. Anyone tried that yet?

AlexM240i · 03-01-2017, 07:52 PM

Quote:

Originally Posted by PeterWT

The lack of a valve shouldn't matter. The valve is only closed during cold start. After warm up it stays open.

As far as i know, the valve is controlled by the ECU depending of the throttle or driving mode, not just during cold start.

PeterWT · 03-01-2017, 08:23 PM

Quote:

Originally Posted by AlexM240i

As far as i know, the valve is controlled by te ECU depending of the throttle or driving mode, not just during cold start.

I tested it on mine with the car stationary and it was always closed on cold startup and always open after warm up, regardless of mode. I suppose it's possible that the ECU is closing it while driving in certain modes, but that's not my understanding of how it works. I think it is only used to restrict exhaust flow during cold startup to heat up the cat as quickly as possible. However I could be wrong.

PYTran · 03-02-2017, 03:01 PM

Quote:

Originally Posted by Vyruz Reaper

anywhere to do this in OC Socal area?

Second on this! Any recommendations? Y'all are such bad influences. But I'm getting my tax return soon and saving the money sounds too damn responsible.

AlexM240i · 03-02-2017, 03:57 PM

Quote:

Originally Posted by PYTran

Second on this! Any recommendations? Y'all are such bad influences. But I'm getting my tax return soon and saving the money sounds too damn responsible.

That's correct ! YOLO !

AlexM240i · 03-04-2017, 07:07 AM

Quote:

Originally Posted by mpbruin108

I'm going to try this and I have the MPE so hopefully it won't be droning.

Interested in your feedback. MPE with both resonators delete.

mpbruin108 · 03-04-2017, 06:26 PM

Quote:

Originally Posted by PeterWT

I tested it on mine with the car stationary and it was always closed on cold startup and always open after warm up, regardless of mode. I suppose it's possible that the ECU is closing it while driving in certain modes, but that's not my understanding of how it works. I think it is only used to restrict exhaust flow during cold startup to heat up the cat as quickly as possible. However I could be wrong.

If it is anything like the the M3/m4 ones, they open up if you are in sport mode for a few minutes after it warms up. But if you aren't in sport mode, it won't open.

POVRTM · 03-04-2017, 07:47 PM

Quote:

Originally Posted by PYTran

Second on this! Any recommendations? Y'all are such bad influences. But I'm getting my tax return soon and saving the money sounds too damn responsible.

Look into OC muffler man in placentia. I don't have my car yet but plan on going there when I do. I did a catback install there and they did a great job. I imagine they can do resonator/muffler deletes too.

M5 Monster · 03-05-2017, 05:47 AM

Nice Mod why did you weld vs Clamp?
Would you be willing to add a M2 Muffler i have a few and would be willing to work with you on cost.

http://www.2addicts.com/forums/showthread.php?t=1353907

Also check out fasteddy Post
http://www.2addicts.com/forums/showthread.php?t=1357273

42395_skyline · 03-05-2017, 11:11 AM

Quote:

Originally Posted by mpbruin108

If it is anything like the the M3/m4 ones, they open up if you are in sport mode for a few minutes after it warms up. But if you aren't in sport mode, it won't open.

When I went to disconnect the valve I decided to look at the valve before driving around in sport mode and it was already open, so I just disconnected it. Did not previously drive in sport, only comfort. So it'll open in comfort too just not sure what I did to make it happen.

AlexM240i · 03-11-2017, 07:48 AM

Does anyone know if removal of both resonators or installing an straigth-tube midpipe negatively affects performance in terms of power or torque ??

I ask that because of this video....

brunoranger · 03-11-2017, 09:22 AM

3 questions:

Will doing this on a lease affect warranties in any way? Clearly the shops will notice when you bring it in for service.

Additionally, is it completely reversible? I'd guess $200 to do this and $200 to bring it back to stock? (Keep the resonators) upon lease return/swap?

And, will I still pass NYS emissions testing?

02-28-2017, 09:26 AM	#25
evancross New Member 9 Rep 19 Posts Drives: 2017 M240i 6MT Join Date: Dec 2016 Location: Kelowna, BC iTrader: (0)	I'm getting mine done today. I have an ER Catless Downpipe installed too so it will be interesting to see/hear the difference.
	Appreciate 1 AlexM240i101.50 Quote

03-01-2017, 02:06 AM	#28
PYTran New Member 6 Rep 17 Posts Drives: Alpine White M240i Join Date: Nov 2016 Location: Irvine iTrader: (0)	Hey guys, I'm pretty new to the aftermarket scene but deleting a resonator requires cutting the resonators out and welding in a new resonator correct? So is this destructive and non-reversible? I'm on a lease but man I wish the B58 was louder.
	Appreciate 0 Quote

03-01-2017, 07:00 PM	#32
Vyruz Reaper Reverse Homer 151 Rep 1,064 Posts Drives: ///M240i Join Date: May 2007 Location: Sunny SoCal iTrader: (6)	anywhere to do this in OC Socal area?
	Appreciate 0 Quote

03-01-2017, 07:15 PM	#33
PeterWT Lieutenant 253 Rep 558 Posts Drives: '17 M240i, AT, BSM Join Date: Dec 2016 Location: Florida, USA iTrader: (0)	I'd like to hear it with just the front resonator removed. Anyone tried that yet? __________________ My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
	Appreciate 0 Quote

03-05-2017, 05:47 AM	#41
M5 Monster Banned 157 Rep 959 Posts Drives: F10 Join Date: Jan 2016 Location: DMV iTrader: (36)	Nice Mod why did you weld vs Clamp? Would you be willing to add a M2 Muffler i have a few and would be willing to work with you on cost. http://www.2addicts.com/forums/showthread.php?t=1353907 Also check out fasteddy Post http://www.2addicts.com/forums/showthread.php?t=1357273 Last edited by M5 Monster; 03-05-2017 at 05:52 AM..
	Appreciate 1 Resoelg238.00 Quote

03-11-2017, 07:48 AM	#43
AlexM240i First Lieutenant 102 Rep 303 Posts Drives: M240i Join Date: Oct 2016 Location: US iTrader: (0)	Does anyone know if removal of both resonators or installing an straigth-tube midpipe negatively affects performance in terms of power or torque ?? I ask that because of this video.... Last edited by AlexM240i; 03-11-2017 at 12:10 PM..
	Appreciate 0 Quote

03-11-2017, 09:22 AM	#44
brunoranger Enlisted Member 8 Rep 46 Posts Drives: 2017 BMW M240i Join Date: Feb 2017 Location: New York iTrader: (0)	3 questions: Will doing this on a lease affect warranties in any way? Clearly the shops will notice when you bring it in for service. Additionally, is it completely reversible? I'd guess $200 to do this and $200 to bring it back to stock? (Keep the resonators) upon lease return/swap? And, will I still pass NYS emissions testing? __________________ 2017 BMW M240I Convertible Estoril Blue RWD 6MT On order: Ordered 2/22/17, Finished build 3/15/17, At Port 4/11/17, Delivered ?
	Appreciate 0 Quote