[PLife]

Originally Posted by LBbluem2

I'll have to double check the resonators when I get home but I do believe you are correct

Thank you 🙌🏻

[TrentMeister]

Originally Posted by mattburks

LBbluem2
If you don't mind 100% confirming when handy... I'll owe you 2 beers now.

Originally Posted by PLife

Thank you 🙌🏻

Yep back one has the x

[Der_Wolf]

Originally Posted by PLife

Great thread! So my takeaways are: secondary cat delete (right after downpipe flanges) biggest bang for buck in volume. First resonator (closest to engine) is straight through piping with baffles and expansion chamber, little volume benefit removing. Second resonator (furthest from engine) is more complex and is where cylinder bank mixing occurs (are we 100% on this, anyone have pics?). If these takeaways are correct, i would defo do secondary cat delete since they are unmonitored (did this on my aston with the amg ttv8, results were legendary) and the first resonaotor. My experience with secondary cat deletes has been really really good. I would expect zero point zero drone with secondary cat n first resonator delete on the G8x
This plus charcoal filter removal and bmc could be the move...

If anyone does this, please post a video. I think just pulling the res and adding the x-pipe will be plenty of noise for me and my neighbors, but I would certainly like to hear all the options.

[E36 PWR]

Is there a rule of thumb on where the X/H pipe should go? How are you guys deciding how far back to put it?

[PLife]

Originally Posted by Der_Wolf

If anyone does this, please post a video. I think just pulling the res and adding the x-pipe will be plenty of noise for me and my neighbors, but I would certainly like to hear all the options.

Ill do it. I need a car first tho just placed order.

[TrentMeister]

Originally Posted by Der_Wolf

If anyone does this, please post a video. I think just pulling the res and adding the x-pipe will be plenty of noise for me and my neighbors, but I would certainly like to hear all the options.

I have a bunch of videos on the first post

[TrentMeister]

Originally Posted by E36 PWR

Is there a rule of thumb on where the X/H pipe should go? How are you guys deciding how far back to put it?

They're merged at the last second on our car but on an e9x m3 they merge about halfway down so I don't think it really matters

[Der_Wolf]

Originally Posted by LBbluem2

I have a bunch of videos on the first post

I'm talking about the secondary cat bypass with one res out.

[TrentMeister]

Originally Posted by Der_Wolf

I'm talking about the secondary cat bypass with one res out.

I'm curious as well... I may try to get it done

[PLife]

Plus the airbox stuff... should give it some more umph. There no air filters yet tho. Does anyone know whether the g80/2 use filters from other models? They tend to recycle stuff like this. My 2020 vantage used 2 x 2007 alpina b7 filters. I kid you not!

[mattburks]

I plan to try and get this done on Tuesday! Spoke
To 2 muffler shops yesterday, and driving to see them Monday for a Tuesday job!

[TrentMeister]

Originally Posted by PLife

Plus the airbox stuff... should give it some more umph. There no air filters yet tho. Does anyone know whether the g80/2 use filters from other models? They tend to recycle stuff like this. My 2020 vantage used 2 x 2007 alpina b7 filters. I kid you not!

Yeah I've taken out the filter in the top of the air box and it makes a pretty dramatic difference I've found.

Couple that with the cheap exhaust mod and it makes some pretty awesome sounds for next to nothing.

[warcity]

Originally Posted by LBbluem2

Yeah I've taken out the filter in the top of the air box and it makes a pretty dramatic difference I've found.

Couple that with the cheap exhaust mod and it makes some pretty awesome sounds for next to nothing.

Can you tell me more about the filter mod you've made? Is it just the top cover you've removed?

[TrentMeister]

Originally Posted by warcity

Can you tell me more about the filter mod you've made? Is it just the top cover you've removed?

Yeah just open up each individual air box t-10 driver I believe

On the motor side or the air box there are some grey colored filters(carbon or charcoal filters I can't remember the name).

Pry them out of their position and and stow them away.

Put your airbox's back together and viola... lots more turbo spool for your auditory pleasures.

Super common mod with no downside and dealership will never notice.

[Der_Wolf]

Originally Posted by LBbluem2

Yeah just open up each individual air box t-10 driver I believe

On the motor side or the air box there are some grey colored filters(carbon or charcoal filters I can't remember the name).

Pry them out of their position and and stow them away.

Put your airbox's back together and viola... lots more turbo spool for your auditory pleasures.

Super common mod with no downside and dealership will never notice.

It's a Torx 25 screwdriver actually. You also need a flat head for the hose clamps. Don't forget to do both air boxes. The Torx screws stay in the box so you don't have to worry about them falling into the engine bay. I always tie a band around the screwdriver handle and attach it to my wrist so I don't drop the driver down the engine bay either (although I don't think I've ever let go).

[warcity]

Originally Posted by LBbluem2

Yeah just open up each individual air box t-10 driver I believe

On the motor side or the air box there are some grey colored filters(carbon or charcoal filters I can't remember the name).

Pry them out of their position and and stow them away.

Put your airbox's back together and viola... lots more turbo spool for your auditory pleasures.

Super common mod with no downside and dealership will never notice.

Thank you for the details. 🙏🏼👍

[vetteflier]

Originally Posted by Der_Wolf

It's a Torx 25 screwdriver actually. You also need a flat head for the hose clamps. Don't forget to do both air boxes. The Torx screws stay in the box so you don't have to worry about them falling into the engine bay. I always tie a band around the screwdriver handle and attach it to my wrist so I don't drop the driver down the engine bay either (although I don't think I've ever let go).

You don't need to remove the bracing to do this?

[Der_Wolf]

Originally Posted by vetteflier

You don't need to remove the bracing to do this?

No you do not. Probably the only benefit of the carbon fiber brace being gone hahah.

[TrentMeister]

Originally Posted by G80GM

He charged me 1000 for that but he has different options mine was more because of the v band clamps but he did another one and I think he charged like 700 or 800

You paid 1k for this job?

[Der_Wolf]

Originally Posted by G80GM

Yes cause I did everything with v band clamps 4 of them that’s already about 300 bucks just on clamps plus pipeing and labor I think it’s about right like I said there’s cheaper ways of doing it he said but that’s how I wanted it done

Whats the benefit of getting V band clamps over doing it how OP did?

[TrentMeister]

Update:

With my current setup:
Res delete
X pipe
Valves open

I get a pretty mean drone on inclines at highway speeds.

The car also sounds a bit like a boat at low rpm when I'm warming it up in efficient.

Also if you hit the exhaust button it turns burbles completely off.

[Der_Wolf]

Originally Posted by LBbluem2

Update:

With my current setup:
Res delete
X pipe
Valves open

I get a pretty mean drone on inclines at highway speeds.

The car also sounds a bit like a boat at low rpm when I'm warming it up in efficient.

Also if you hit the exhaust button it turns burbles completely off.

That's not the update I was hoping for my man