Mid pipe mods

Purekoryo · 09-22-2022, 03:19 PM

Quote:

Originally Posted by mike@x-ph.com

Quote:

Originally Posted by Melsh113

Personally I found doing high flow primary cats on my car made a bigger difference then deleting my resonators and secondary cats. Obviously the secondary cat and resonator delete will add some sound to the car but not nearly as much as changing the primary cats did for me. Also, I dynoed my M3 and just from doing high flow cats I picked up an extra 20 whp which I was really surprised about. My M3 finally sounds like a true German performance car!

upgrading the downpipes makes a huge difference.

Is it too loud with aftermarket full cat back exhaust paired with a 200 cell?

Melsh113 · 09-22-2022, 04:43 PM

Quote:

Originally Posted by Purekoryo

Is it too loud with aftermarket full cat back exhaust paired with a 200 cell?

I wouldn't say its too loud but sound is subjective and everyone has different taste. I like very loud so this was perfect for me and I have a valved system so when I close my valves its perfect for everyday cruising. With valves opened in sport mode its pretty rowdy hahaha. This is essentially the set up I did on my car. Couldn't be happier with it and had no issues installing everything.

mike@x-ph.com · 09-22-2022, 04:48 PM

Quote:

Originally Posted by Purekoryo

Is it too loud with aftermarket full cat back exhaust paired with a 200 cell?

It depends on the person; my only concern is the cold start.

It'll sound perfect after

hamzag20 · 09-22-2022, 11:46 PM

I currently have a single midpipe but was thinking about ordering a valve controller however I keep hearing many are having a problem with them. How much of a difference does the valve controller make with a single midpipe?

JTO24 · 09-23-2022, 09:13 AM

Quote:

Originally Posted by hamzag20

I currently have a single midpipe but was thinking about ordering a valve controller however I keep hearing many are having a problem with them. How much of a difference does the valve controller make with a single midpipe?

I don't have a single mid-pipe (currently stock) but have had the VSC valve controller for almost a year now and no issues whatsoever. Noticeable difference in sound, too, as even in sport+ (without the vale controller) the valves still close throughout the rev range.

jct_m3 · 09-23-2022, 09:58 PM

Added my PSI mid pipe i love it

TrentMeister · 09-23-2022, 10:06 PM

Quote:

Originally Posted by hamzag20

I currently have a single midpipe but was thinking about ordering a valve controller however I keep hearing many are having a problem with them. How much of a difference does the valve controller make with a single midpipe?

For me it's mandatory. For the best sound the s58+single mid can make you need it.

Efficient mode~valves open~s3~40-60% throttle~shift at 5k

mike@x-ph.com · 09-24-2022, 10:16 AM

Quote:

Originally Posted by jct_m3

Added my PSI mid pipe i love it

Sound clip please

Boostin335 · 09-27-2022, 05:19 PM

Can someone explain paying $1500-2000 for a midpipe vs just having 3" piping welded for $200-400 bux? I am confused at what the difference is.

TrentMeister · 09-27-2022, 05:25 PM

Quote:

Originally Posted by Boostin335

Can someone explain paying $1500-2000 for a midpipe vs just having 3" piping welded for $200-400 bux? I am confused at what the difference is.

You know someone that will fab that whole thing for 400?

I doubt it unless you're that guy

Boostin335 · 09-27-2022, 06:13 PM

Quote:

Originally Posted by TrentMeister

You know someone that will fab that whole thing for 400?

I doubt it unless you're that guy

I think you're replying off a different premise. I am asking on our vendors sites I see pipes for under $300 and then $1500ish+

I guess these replace different things, that is what I am confused about. Can you explain the difference?

mike@x-ph.com · 09-27-2022, 06:52 PM

Quote:

Originally Posted by Boostin335

Can someone explain paying $1500-2000 for a midpipe vs just having 3" piping welded for $200-400 bux? I am confused at what the difference is.

Got your dm and explained the difference.

Hope that helped

RugbyBro · 09-27-2022, 09:51 PM

You guys seen this? Pretty cool y'all are getting this option - been harping since the beginning that G8X is NOT equal length from factory. Could do with a resonator on this specific car.

TrentMeister · 09-27-2022, 10:31 PM

Quote:

Originally Posted by Boostin335

Quote:

Originally Posted by TrentMeister

You know someone that will fab that whole thing for 400?

I doubt it unless you're that guy

I think you're replying off a different premise. I am asking on our vendors sites I see pipes for under $300 and then $1500ish+

I guess these replace different things, that is what I am confused about. Can you explain the difference?

Ooooh, I though you were saying "why not go to a muffler shop and get it done for 300-400"

Those 300$ straight sections are if you did in fact want to DIY.

The 1500$ pipes are a finished product.

TrentMeister · 09-27-2022, 10:55 PM

Quote:

Originally Posted by RugbyBro

You guys seen this? Pretty cool y'all are getting this option - been harping since the beginning that G8X is NOT equal length from factory. Could do with a resonator on this specific car.

His buddy wasn't having it😂

RugbyBro · 09-27-2022, 11:48 PM

Quote:

Originally Posted by TrentMeister

His buddy wasn't having it😂

Yah - I've seen that dude has a very rauckus catless F80 with EL. I'm on the other end of the spectrum with OE cats and a resonated EL setup, sounds silky smooth.

I will say on a separate note, it seems like G80 will have the same raspiness issue as F80 with using aftermarket DPs. Anyone thinking of running non-OE cats / DPs will likely need resonators.

SevenNine · 09-28-2022, 03:36 PM

Quote:

Originally Posted by RugbyBro

Yah - I've seen that dude has a very rauckus catless F80 with EL. I'm on the other end of the spectrum with OE cats and a resonated EL setup, sounds silky smooth.

I will say on a separate note, it seems like G80 will have the same raspiness issue as F80 with using aftermarket DPs. Anyone thinking of running non-OE cats / DPs will likely need resonators.

I think DPs with single midpipe and stock rear sounds pretty good. The single midpipe smooths out the raspiness.

RugbyBro · 09-28-2022, 07:40 PM

Quote:

Originally Posted by SevenNine

I think DPs with single midpipe and stock rear sounds pretty good. The single midpipe smooths out the raspiness.

Yah same thing on F80, you need a massive pipe to smooth out the catless tone in lieu of extra resonators. EL you definitely need resonators at a minimum.

G8ighty · 09-29-2022, 08:48 AM

Can someone post the raw materials needed for the resonator delete?
2.5" stainless steel? How many feet?

mike@x-ph.com · 09-29-2022, 09:11 AM

I'll install the active autowerke resonated single midpipe on my G82 with stock downpipes next week.

Installation video and sound clip will be posted soon

TrentMeister · 09-29-2022, 09:46 AM

Quote:

Originally Posted by mike@x-ph.com

I'll install the active autowerke resonated single midpipe on my G82 with stock downpipes next week.

Installation video and sound clip will be posted soon

Should be a clean sound, might be too quiet tho

mike@x-ph.com · 09-29-2022, 09:54 AM

Quote:

Originally Posted by TrentMeister

Should be a clean sound, might be too quiet tho

I think you are correct. It's probably a better option on high-flow downpipes. If it's too quiet on my car, I will switch back to the X-pipe straight I currently have.

I try as many setups as possible on my car, so when customers are asking for my feedback, they can trust I know what im talking about

09-22-2022, 11:46 PM	#708
hamzag20 First Lieutenant 557 Rep 328 Posts Drives: BMW G20 330i, BMW G30 540i Join Date: Aug 2019 Location: Missouri iTrader: (0)	I currently have a single midpipe but was thinking about ordering a valve controller however I keep hearing many are having a problem with them. How much of a difference does the valve controller make with a single midpipe?
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09-23-2022, 09:58 PM	#710
jct_m3 Major 4213 Rep 1,044 Posts Drives: 2022 BMW M3 Join Date: Nov 2020 Location: NY iTrader: (0) Garage List 2022 BMW M3 COMPETI ... [10.00]	Added my PSI mid pipe i love it __________________ IG : bmw_jose
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09-27-2022, 05:19 PM	#713
Boostin335 Lieutenant Colonel 562 Rep 1,723 Posts Drives: G82 M4CX, C8, MKIV Supra Join Date: Sep 2007 Location: North/Central NJ iTrader: (2)	Can someone explain paying $1500-2000 for a midpipe vs just having 3" piping welded for $200-400 bux? I am confused at what the difference is.
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09-27-2022, 09:51 PM	#717
RugbyBro Brigadier General 7602 Rep 3,604 Posts Drives: M3 Join Date: Jun 2019 Location: Seattle iTrader: (0)	You guys seen this? Pretty cool y'all are getting this option - been harping since the beginning that G8X is NOT equal length from factory. Could do with a resonator on this specific car. __________________ Current: F80 Prior: F82, F32 Last edited by RugbyBro; 09-27-2022 at 09:57 PM..
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09-29-2022, 08:48 AM	#723
G8ighty Second Lieutenant 247 Rep 217 Posts Drives: 22’ G80 M3 6mt Join Date: Oct 2021 Location: 🇺🇸 North East iTrader: (0)	Can someone post the raw materials needed for the resonator delete? 2.5" stainless steel? How many feet?
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09-29-2022, 09:11 AM	#724
mike@x-ph.com BimmerPost Supporting Vendor 24204 Rep 190,807 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	I'll install the active autowerke resonated single midpipe on my G82 with stock downpipes next week. Installation video and sound clip will be posted soon __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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