Try out the new beta site for M3Post. You can read more about what's happening here
BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Today's Posts

Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
Post Reply
 
Thread Tools
      06-02-2014, 11:34 PM   #45
jagman
First Lieutenant
jagman's Avatar
United_States
33
Rep
317
Posts

Drives: 2008 Alpine White E92 M3
Join Date: Aug 2012
Location: Sacramento, CA

iTrader: (1)

good 😀 I'm excited to read of your results. I want the Velaforza and have an Akra slip on but am thinking of making that switch to the Corsa for sonic reasons. I suspect the Corsa with a catted Velaforza sounds amazing, it's just a question of how much power puts down 👍
__________________
2008 AW E92 M3: Stage II and DCT tune by BPM Sport, convenience coding + coding for mDrive w/Euro MDM (no iDrive) & alarm retrofit by BPM Sport, Fox Red interior, ESS midpipe, Corsa slip on exhaust, carbon fiber M Performance spoiler, black grills, black OEM M3 ZCP 19" wheels, 15/12mm spacers and AW painted reflectors
Appreciate 0
      06-03-2014, 08:37 PM   #46
lsmkr01
Lieutenant Colonel
lsmkr01's Avatar
United_States
50
Rep
1,627
Posts

Drives: E92 M3
Join Date: Feb 2007
Location: SC

iTrader: (0)

May just end up with Gintani midsection after the year long disappointment that was a wait for nothing. Should produce similar power with its merge placed similar to MRF.
Appreciate 0
      06-03-2014, 09:57 PM   #47
OM VT3
Lieutenant Colonel
OM VT3's Avatar
164
Rep
1,665
Posts

Drives: 2011 e92 zcp m3
Join Date: Aug 2010
Location: Somewhere

iTrader: (1)

Quote:
Originally Posted by lsmkr01 View Post
May just end up with Gintani midsection after the year long disappointment that was a wait for nothing. Should produce similar power with its merge placed similar to MRF.
I've got a gintani and make no extra power over when I had an akra
Appreciate 0
      06-03-2014, 11:59 PM   #48
jagman
First Lieutenant
jagman's Avatar
United_States
33
Rep
317
Posts

Drives: 2008 Alpine White E92 M3
Join Date: Aug 2012
Location: Sacramento, CA

iTrader: (1)

Quote:
Originally Posted by leigh
Quote:
Originally Posted by lsmkr01 View Post
May just end up with Gintani midsection after the year long disappointment that was a wait for nothing. Should produce similar power with its merge placed similar to MRF.
I've got a gintani and make no extra power over when I had an akra
interesting
__________________
2008 AW E92 M3: Stage II and DCT tune by BPM Sport, convenience coding + coding for mDrive w/Euro MDM (no iDrive) & alarm retrofit by BPM Sport, Fox Red interior, ESS midpipe, Corsa slip on exhaust, carbon fiber M Performance spoiler, black grills, black OEM M3 ZCP 19" wheels, 15/12mm spacers and AW painted reflectors
Appreciate 0
      06-04-2014, 05:13 AM   #49
lsmkr01
Lieutenant Colonel
lsmkr01's Avatar
United_States
50
Rep
1,627
Posts

Drives: E92 M3
Join Date: Feb 2007
Location: SC

iTrader: (0)

Quote:
Originally Posted by jagman
Quote:
Originally Posted by leigh
Quote:
Originally Posted by lsmkr01 View Post
May just end up with Gintani midsection after the year long disappointment that was a wait for nothing. Should produce similar power with its merge placed similar to MRF.
I've got a gintani and make no extra power over when I had an akra
interesting
Very very interesting. What Gintani set up do you have on your x-pipe? Akra's evo x is well known to have a dip in power.
Appreciate 0
      06-04-2014, 08:23 PM   #50
OM VT3
Lieutenant Colonel
OM VT3's Avatar
164
Rep
1,665
Posts

Drives: 2011 e92 zcp m3
Join Date: Aug 2010
Location: Somewhere

iTrader: (1)

Quote:
Originally Posted by lsmkr01 View Post
Very very interesting. What Gintani set up do you have on your x-pipe? Akra's evo x is well known to have a dip in power.
I have a custom xpipe got them to put the cats at the back so they didn't hang low with a sport valved rear
Appreciate 0
      06-04-2014, 09:09 PM   #51
lsmkr01
Lieutenant Colonel
lsmkr01's Avatar
United_States
50
Rep
1,627
Posts

Drives: E92 M3
Join Date: Feb 2007
Location: SC

iTrader: (0)

Quote:
Originally Posted by leigh
Quote:
Originally Posted by lsmkr01 View Post
Very very interesting. What Gintani set up do you have on your x-pipe? Akra's evo x is well known to have a dip in power.
I have a custom xpipe got them to put the cats at the back so they didn't hang low with a sport valved rear
So Fast Intensions fabed up a Ginani pipe with the HFC (how many CEL?) toward the rear. The same one that others (NA & FI) have tested and claimed solid gains over OEM... This makes me qurious as I was thinking their single resonated x-pipe would give good gains over my stock w/ TP's set up.

Which set up are you running currently?
Appreciate 0
      06-04-2014, 09:53 PM   #52
OM VT3
Lieutenant Colonel
OM VT3's Avatar
164
Rep
1,665
Posts

Drives: 2011 e92 zcp m3
Join Date: Aug 2010
Location: Somewhere

iTrader: (1)

Quote:
Originally Posted by lsmkr01 View Post
So Fast Intensions fabed up a Ginani pipe with the HFC (how many CEL?) toward the rear. The same one that others (NA & FI) have tested and claimed solid gains over OEM... This makes me qurious as I was thinking their single resonated x-pipe would give good gains over my stock w/ TP's set up.

Which set up are you running currently?
It uses the normal gintani cats there just in the rear of the xpipe everything else is the same
Appreciate 0
      06-18-2014, 03:48 AM   #53
lsmkr01
Lieutenant Colonel
lsmkr01's Avatar
United_States
50
Rep
1,627
Posts

Drives: E92 M3
Join Date: Feb 2007
Location: SC

iTrader: (0)

Quote:
Originally Posted by whats77inaname
Quote:
Originally Posted by jagman View Post
How is the project coming along?
Nicely. Just waiting on my welder to get a little free time so he can finish up.
You finally get this on the car yet?
Appreciate 0
      06-18-2014, 10:56 AM   #54
whats77inaname
Banned
United_States
902
Rep
3,384
Posts

Drives: when at all possible
Join Date: Aug 2011
Location: Tx

iTrader: (25)

Quote:
Originally Posted by lsmkr01 View Post
You finally get this on the car yet?
Not going on before I get it dynoed. I have an appt for that next week, which is when the work will be finished
Appreciate 0
      06-18-2014, 11:02 AM   #55
s85e90
Brigadier General
203
Rep
3,633
Posts

Drives: black e90
Join Date: Jan 2014
Location: everywhere

iTrader: (2)

Longggg project
Appreciate 0
      06-18-2014, 11:15 AM   #56
whats77inaname
Banned
United_States
902
Rep
3,384
Posts

Drives: when at all possible
Join Date: Aug 2011
Location: Tx

iTrader: (25)

Quote:
Originally Posted by s85e90 View Post
Longggg project
Not for me. I have a lot of irons in the fire, this little project is just one of them. Hell, I've been sitting on the rear section for 18 months *lol*, not sweating this at all, I can assure you.
Appreciate 0
      06-18-2014, 11:21 AM   #57
s85e90
Brigadier General
203
Rep
3,633
Posts

Drives: black e90
Join Date: Jan 2014
Location: everywhere

iTrader: (2)

Quote:
Originally Posted by whats77inaname View Post
Not for me. I have a lot of irons in the fire, this little project is just one of them. Hell, I've been sitting on the rear section for 18 months *lol*, not sweating this at all, I can assure you.

you are a better man than me for sure!
Appreciate 0
      06-18-2014, 12:05 PM   #58
W///
Lieutenant General
W///'s Avatar
8241
Rep
12,604
Posts

Drives: F82GTS, E36/E92M3, Z4M
Join Date: Sep 2011
Location: SC

iTrader: (13)

Quote:
Originally Posted by whats77inaname View Post
Not for me. I have a lot of irons in the fire, this little project is just one of them. Hell, I've been sitting on the rear section for 18 months *lol*, not sweating this at all, I can assure you.
Geez, that's crazy. I get impatient and will do the mods the same day as I get them. Then something will go wrong and the car will be undriveable until I get parts to fix the mistake haha. I could learn a few things from you
__________________
Current:
16 F82 M4 GTS, Black Sapphire/Black, DCT
08 E92 M3, Sparkling Graphite/Bamboo Beige, 6MT
07 E85 Z4M Roadster, Alpine White/Red, 6MT
99 E36 M3, Techno Violet/Dove Grey, 6MT
Appreciate 0
      06-18-2014, 12:28 PM   #59
lsmkr01
Lieutenant Colonel
lsmkr01's Avatar
United_States
50
Rep
1,627
Posts

Drives: E92 M3
Join Date: Feb 2007
Location: SC

iTrader: (0)

Quote:
Originally Posted by whats77inaname View Post
Not going on before I get it dynoed. I have an appt for that next week, which is when the work will be finished
Dang buddy at least throw in a picture of the finished piece with the cats on

Honestly want you to report negligible gains so i can stop thinking about this already haha
Appreciate 0
      06-18-2014, 01:39 PM   #60
whats77inaname
Banned
United_States
902
Rep
3,384
Posts

Drives: when at all possible
Join Date: Aug 2011
Location: Tx

iTrader: (25)

Quote:
Originally Posted by W/// View Post
Geez, that's crazy. I get impatient and will do the mods the same day as I get them. Then something will go wrong and the car will be undriveable until I get parts to fix the mistake haha. I could learn a few things from you
As a DIYer (for the most part), I'm a firm believer in not having to do things twice. The exhaust, for example. I knew I'd have to go back under the car and put on the x-pipe, so to me, it didn't make sense for me to put on the rear when I knew that I'd be getting an x-pipe at some point, and the whole process would start again. I had my coil overs for 2+ years, sitting in the box. Thought that since I was going to purchase 19s at some point, I didn't want to have to go back and spend time to adjust the ride height. So when I got the Volks for over a year later, I waited another year before I finally decided to get them powdercoated and put on the car. Since I had to get new tires at some point, it made more sense to run the tread off the stock 18s first. So I did wheels/tires/suspension all at the same time.

I'm allocated a finite amount of time on earth, and I've realized that I should try to spend it efficiently, as I'm not getting it back. As such, for the most part, I'm a pretty patient dude.

Quote:
Originally Posted by lsmkr01 View Post
Dang buddy at least throw in a picture of the finished piece with the cats on

Honestly want you to report negligible gains so i can stop thinking about this already haha
You know I will

Last edited by whats77inaname; 06-18-2014 at 01:44 PM..
Appreciate 0
      07-26-2014, 07:25 PM   #61
jagman
First Lieutenant
jagman's Avatar
United_States
33
Rep
317
Posts

Drives: 2008 Alpine White E92 M3
Join Date: Aug 2012
Location: Sacramento, CA

iTrader: (1)

How's it going?
Appreciate 0
      07-26-2014, 10:03 PM   #62
IzzyGray
Lieutenant
United_States
39
Rep
472
Posts

Drives: 2011 M3
Join Date: Oct 2013
Location: Milwaukee, WI

iTrader: (3)

Wanted to chime in on smell. I just did the switch from Challenge Race X pipe(catless with one set of resonators) to Akra Evo X pipe(HFC and one set of resonators). Rear section is Corsa.

Sound:
With the catless x pipe, the sound was amazing. Every time I'm in a tunnel, or better yet stopped at a tool booth(slightly tunneled) and taking off, it reminds me of the good ol' 8 cylinder F1 cars. However there was obvious drone at 2-2.2k and around 3k rpm. Was tolerable for a youngin but it's there. The volume is also high. Downshifting attracted a crap load of attention. I use a speed shop for some stuff and they support track dedicated Porsches. This setup rivaled the off-road only machines.

After the swap, I thought my ears were plugged. Talk about quiet. I thought I made a mistake. However, after 20 or so miles, the volume increased. Louder than stock but not race car loud. Absolutely no drone. I take that back. Same drone as stock(minimal). I drove a buddy's stock setup(in cabin and following behind in both setups) and I'm in love with this setup. It's not boomy like the Challenge Race and still amazing when pushed.

Smell: The Challenge Race is bad. Holy crap it's bad. The Akra has no smell. I even closed my garage door and ran it for a minute or two(not long for obvious reasons) cause I thought wind was just blowing it away. Nadah, zip, zilch. This is one of the main reasons for switching.

No idea what the difference in power is. I'm supercharged(and finally sorting out boost leak issues) so I'm not overly concerned about 10-30 hp :P
Appreciate 0
      07-26-2014, 11:07 PM   #63
jagman
First Lieutenant
jagman's Avatar
United_States
33
Rep
317
Posts

Drives: 2008 Alpine White E92 M3
Join Date: Aug 2012
Location: Sacramento, CA

iTrader: (1)

Quote:
Originally Posted by IzzyGray View Post
Wanted to chime in on smell. I just did the switch from Challenge Race X pipe(catless with one set of resonators) to Akra Evo X pipe(HFC and one set of resonators). Rear section is Corsa.

Sound:
With the catless x pipe, the sound was amazing. Every time I'm in a tunnel, or better yet stopped at a tool booth(slightly tunneled) and taking off, it reminds me of the good ol' 8 cylinder F1 cars. However there was obvious drone at 2-2.2k and around 3k rpm. Was tolerable for a youngin but it's there. The volume is also high. Downshifting attracted a crap load of attention. I use a speed shop for some stuff and they support track dedicated Porsches. This setup rivaled the off-road only machines.

After the swap, I thought my ears were plugged. Talk about quiet. I thought I made a mistake. However, after 20 or so miles, the volume increased. Louder than stock but not race car loud. Absolutely no drone. I take that back. Same drone as stock(minimal). I drove a buddy's stock setup(in cabin and following behind in both setups) and I'm in love with this setup. It's not boomy like the Challenge Race and still amazing when pushed.

Smell: The Challenge Race is bad. Holy crap it's bad. The Akra has no smell. I even closed my garage door and ran it for a minute or two(not long for obvious reasons) cause I thought wind was just blowing it away. Nadah, zip, zilch. This is one of the main reasons for switching.

No idea what the difference in power is. I'm supercharged(and finally sorting out boost leak issues) so I'm not overly concerned about 10-30 hp :P

Thanks for giving your opinion
Appreciate 0
      07-27-2014, 12:28 AM   #64
M3 Pilot
Lieutenant
M3 Pilot's Avatar
Australia
74
Rep
478
Posts

Drives: 17' F80 M3 ZCP
Join Date: Sep 2009
Location: Australia

iTrader: (0)

Quote:
Originally Posted by IzzyGray View Post
Wanted to chime in on smell. I just did the switch from Challenge Race X pipe(catless with one set of resonators) to Akra Evo X pipe(HFC and one set of resonators). Rear section is Corsa.

Sound:
With the catless x pipe, the sound was amazing. Every time I'm in a tunnel, or better yet stopped at a tool booth(slightly tunneled) and taking off, it reminds me of the good ol' 8 cylinder F1 cars. However there was obvious drone at 2-2.2k and around 3k rpm. Was tolerable for a youngin but it's there. The volume is also high. Downshifting attracted a crap load of attention. I use a speed shop for some stuff and they support track dedicated Porsches. This setup rivaled the off-road only machines.

After the swap, I thought my ears were plugged. Talk about quiet. I thought I made a mistake. However, after 20 or so miles, the volume increased. Louder than stock but not race car loud. Absolutely no drone. I take that back. Same drone as stock(minimal). I drove a buddy's stock setup(in cabin and following behind in both setups) and I'm in love with this setup. It's not boomy like the Challenge Race and still amazing when pushed.

Smell: The Challenge Race is bad. Holy crap it's bad. The Akra has no smell. I even closed my garage door and ran it for a minute or two(not long for obvious reasons) cause I thought wind was just blowing it away. Nadah, zip, zilch. This is one of the main reasons for switching.

No idea what the difference in power is. I'm supercharged(and finally sorting out boost leak issues) so I'm not overly concerned about 10-30 hp :P
Certainly good to know a pair of HFC and resonators keeps the drone at bay.

I have a MPE and looking for a bit more sound with a quad resonator X pipe. Either Dinan or Gintani X pipe.
Appreciate 0
      07-27-2014, 06:48 AM   #65
BrewRifle
Lieutenant Colonel
BrewRifle's Avatar
United_States
438
Rep
1,678
Posts

Drives: 2011 MCB E92 M3
Join Date: Jun 2013
Location: Austin, Texas

iTrader: (4)

Garage List
2011 BMW M3  [7.56]
2013 BMW X3 35i  [0.00]
2009 BMW 135i  [8.00]
I ran the AA HFC x-pipe for a short while and I didn't notice any smell compared to stock x-pipe. You get the best of both worlds in my opinion, 90-05% of the gains and no smell.
__________________
2011 Monte Carlo Blue E92 ///M3 - ESS VT2-625
Appreciate 0
      07-27-2014, 09:32 AM   #66
s85e90
Brigadier General
203
Rep
3,633
Posts

Drives: black e90
Join Date: Jan 2014
Location: everywhere

iTrader: (2)

Quote:
Originally Posted by whats77inaname View Post
As a DIYer (for the most part), I'm a firm believer in not having to do things twice. The exhaust, for example. I knew I'd have to go back under the car and put on the x-pipe, so to me, it didn't make sense for me to put on the rear when I knew that I'd be getting an x-pipe at some point, and the whole process would start again. I had my coil overs for 2+ years, sitting in the box. Thought that since I was going to purchase 19s at some point, I didn't want to have to go back and spend time to adjust the ride height. So when I got the Volks for over a year later, I waited another year before I finally decided to get them powdercoated and put on the car. Since I had to get new tires at some point, it made more sense to run the tread off the stock 18s first. So I did wheels/tires/suspension all at the same time.

I'm allocated a finite amount of time on earth, and I've realized that I should try to spend it efficiently, as I'm not getting it back. As such, for the most part, I'm a pretty patient dude.



You know I will
You don't need to do things 2x in these instances you mentioned. I put my coilovers on with 19's and the drop is still perfect with 18s. I've also been through many exhaust setups. You can change the x pipe without touching the rear section. Your last sentiment rings true. You have a limited time on this earth. Enjoy your car parts now!! For we may not have several years to wait

Either way it's your car we're just getting impatient!!!
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:12 PM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST