[Patton250]

Originally Posted by TrentMeister

Having driven the car a little while now with oem valve function and all things in the mid pipe deleted..

I have to say, it's pretty nice.

It's definitely a nicer put around town tone and when you get on it it barks super loud.

Very dual character.

Until the mperf exhaust comes out or we get valve control I'll be leaving it as it is.

What’s this?

[PLife]

Originally Posted by TrentMeister

I tried

"Not supported"

Shiii. ☹️ Its resonator delete time 🤣

[///AVM]

Originally Posted by McLaren720s

So I tried disconnecting the valves but they seem to close before I can actually unplug them. I start the car in Sport+ and they seem to be open but they close before I can unplug the harness. What am I missing?

McLaren720s

Refer to my above post (#217) and/or this thread. The valves never appear to fully open and, yes, are only briefly opened.

Originally Posted by TrentMeister

It's a 2 man operation and takes 2 days

TrentMeister

It is a two-man operation . . . but should only take 30 min, or so. Actually, less time but, like most things, the first attempt goes a little slower.

///AVM

[Der_Wolf]

Originally Posted by Patton250

What's this?

M Performance exhaust

[VonB]

Got a custom midpipe with aftermarket tips done a few months back as well

[LuckyBrand]

Originally Posted by McLaren720s

So I tried disconnecting the valves but they seem to close before I can actually unplug them. I start the car in Sport+ and they seem to be open but they close before I can unplug the harness.
What am I missing?

A few of us tried this and yes they do close to quick. You either have to have someone help you and rev the piss out of the car while you unplug the harness which I don't recommend or just do what most of us have and remove the assembly and wire the flap open.

[Der_Wolf]

Originally Posted by LuckyBrand

A few of us tried this and yes they do close to quick. You either have to have someone help you and rev the piss out of the car while you unplug the harness which I don't recommend or just do what most of us have and remove the assembly and wire the flap open.

My HOA would have a fucking stroke

[McLaren720s]

Originally Posted by VonB

Got a custom midpipe with aftermarket tips done a few months back as well

Does this mid pipe basically just removes the primary resonator?

[LukeM15]

I like the secondary cats delete + 2 resonators w X pipe combo.

[LukeM15]

Originally Posted by PLife

Seriously, nobody tried bimmerlink for the valves???
If it works… voila. And no need to mess with valves.

So this works to retain the valves open?

[vetteflier]

Pretty obvious that "loud" is purely a personal opinion. My '06 and '13 C6s with B&B Bullets were, by any measurement, "loud." The '18 with OEM NPP and valves permanently open, were nowhere near as 'loud,' but still sounded great. There is no way a BMW M3/4 will 'ever' be near that--even if it was straight piped from the cats all the way back. It would be 'louder,' but also very coarse sounding, I would imagine. With the valves wired fully open, as AVM has noted in the "howtos" we both posted, the exhaust isn't anywhere near 'loud' to me, but much improved. Removing the muffler would be my choice--letting the resonators tune the note, as B&B does for the Vettes. Relying on the ECU to control the valves will never get the most from the exhaust--midpipes or anything else in front of the valve control notwithstanding. Whatever you remove will still flow through the choke point of the valves which are never allowed to be fully opened by the ECU except for a second or two. Improvement? Sure. Max benefit? Not happening. But, as I said, "loud" is in the ear of the listener.

[TrentMeister]

Originally Posted by LukeM15

So this works to retain the valves open?

No doesn't work

[Der_Wolf]

Originally Posted by vetteflier

Pretty obvious that "loud" is purely a personal opinion. My '06 and '13 C6s with B&B Bullets were, by any measurement, "loud." The '18 with OEM NPP and valves permanently open, were nowhere near as 'loud,' but still sounded great. There is no way a BMW M3/4 will 'ever' be near that--even if it was straight piped from the cats all the way back. It would be 'louder,' but also very coarse sounding, I would imagine. With the valves wired fully open, as AVM has noted in the "howtos" we both posted, the exhaust isn't anywhere near 'loud' to me, but much improved. Removing the muffler would be my choice--letting the resonators tune the note, as B&B does for the Vettes. Relying on the ECU to control the valves will never get the most from the exhaust--midpipes or anything else in front of the valve control notwithstanding. Whatever you remove will still flow through the choke point of the valves which are never allowed to be fully opened by the ECU except for a second or two. Improvement? Sure. Max benefit? Not happening. But, as I said, "loud" is in the ear of the listener.

Can you stop typing so loud please, its hurting my ears.

[vetteflier]

Originally Posted by Der_Wolf

Can you stop typing so loud please, its hurting my ears.

[PLife]

My spyder is 130 dB and when i first hot the exhaust fitted my ears used to hurt after driving. But now it doesnt seem that loud, maybe i got hearing damage… lmao

[somer]

[McLaren720s]

Originally Posted by somer

That sounds really good! I might have my shop read the description in the video and just build me that. It says it's 3.5 inch equal length unresonated mid-pipe that connects to downpipes. Question is: does that mean they're also removing the secondary cats? Or just removing the resonators?

[Ghozthunter]

That sounds really good to me. It's not raspy.

[LuckyBrand]

Here's a little more detailed video from Valvetronics website. Sounds pretty good with virtually no rasp. Still pretty expensive though but free shipping they say for the Fourth holiday.

[Patton250]

Originally Posted by LuckyBrand

Here's a little more detailed video from Valvetronics website. Sounds pretty good with virtually no rasp. Still pretty expensive though but free shipping they say for the Fourth holiday.

I saw this video a couple weeks ago that dude is remarkably annoying.

[TrentMeister]

Yeah I hear they have some pretty shite service and quality control.

I'm happy with the 400$ option

[Coldsteel16]

Originally Posted by TrentMeister

Yeah I hear they have some pretty shite service and quality control.

I'm happy with the 400$ option

I heard that too.. however, seems like they delayed their initial release so hopefully they took care some of the quality control issues with this specific midpipe before release.

I love the sound of single midpipe, so I did fork over $1800 for this.. I'll post some vids when I finally get it.