BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
E92 Lighting
Post Reply
 
Thread Tools Search this Thread
      03-10-2010, 11:45 PM   #1
bame_E92
Second Lieutenant
 
bame_E92's Avatar
 
Drives: 2009 E92 M3
Join Date: Jun 2009
Location: Wilmington North Carolina

Posts: 236
iTrader: (3)

Exhaust Cutout Valve Suggestions!

So I'm considering ordering the 2.25" Dual Electric Exhaust Cutouts by Race Ready Performance for my 09 E92 M3 and I'm just curious if anyone has comments about this idea. If anyone has videos that would really help. I heard them once on a E92 ///M3 but it was awhile ago so I need some refreshing on what they sound like.

Also, if people have other websites to buy from other that racereadyperformance.com feel free to share....there price is $499 including shipping. Thanks
bame_E92 is offline   United_States
0
Reply With Quote
      03-11-2010, 03:44 PM   #2
SS32
Major
 
SS32's Avatar
 
Drives: 2008 M3
Join Date: May 2007
Location: Raleigh, NC

Posts: 1,431
iTrader: (0)

I absolutely LOVE mine. With them open, the car sounds like an animal. At WOT the engine has that great small displacement V8 tone. I don't have any videos; my camera is broken, but I do have some pictures. You won't find a better alternative for the price.

http://img14.imageshack.us/g/cutout1.jpg/

I have the Race Ready kit, btw.
SS32 is offline  
0
Reply With Quote
      03-12-2010, 07:04 PM   #3
m3cl
Registered
 
Drives: m3
Join Date: Mar 2010
Location: tx

Posts: 1
iTrader: (0)

yep race ready is the way to go!
m3cl is offline  
0
Reply With Quote
      03-13-2010, 01:27 AM   #4
swamp2
Lieutenant General
 
swamp2's Avatar
 
Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

Posts: 10,135
iTrader: (1)

Quote:
Originally Posted by SS32 View Post
I absolutely LOVE mine. With them open, the car sounds like an animal. At WOT the engine has that great small displacement V8 tone. I don't have any videos; my camera is broken, but I do have some pictures. You won't find a better alternative for the price.

http://img14.imageshack.us/g/cutout1.jpg/

I have the Race Ready kit, btw.
Nice mod. Still considering this myself. It looks like you did not choose the stainless option on some parts. Regrets on that?
__________________
E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit |
swamp2 is online now   United_States
0
Reply With Quote
      03-13-2010, 01:45 AM   #5
Dartanium
Lieutenant
 
Drives: 09 E90 M3
Join Date: Oct 2008
Location: CA

Posts: 558
iTrader: (0)

All electric actuators or motors die over time due to heat and moisture. And the valve usually leaks or gets blown out in hard acceleration on boosted application. Lastly the decreased back-pressure has significant enough impact that another tune is needed on my other car, so every time I go WOT, the cutouts have to be open if that is the map is used.

In the end, I would not go electric cut-outs again. Maybe manual cut out with a block plate for a true track car.
Dartanium is offline  
0
Reply With Quote
      03-13-2010, 09:41 AM   #6
jml
Captain
 
jml's Avatar
 
Drives: E90M3
Join Date: Dec 2008
Location: Austin, TX

Posts: 981
iTrader: (2)

Quote:
Originally Posted by SS32 View Post
I absolutely LOVE mine. With them open, the car sounds like an animal. At WOT the engine has that great small displacement V8 tone. I don't have any videos; my camera is broken, but I do have some pictures. You won't find a better alternative for the price.

http://img14.imageshack.us/g/cutout1.jpg/

I have the Race Ready kit, btw.
+1 - Raceready is the best option, but they are not a perfect design - clearly not staffed by engineers.. they will eventually rattle. I've had mine for about a year now with no regrets though. I don't notice any loss in power or change in the torque curve. There is so little backpressure in the stock muffler that I doubt this has any effect, and until I see a dyno plot showing there to be an issue I'm going to assume that I'm fine.

Now when I take the secondary cats out....then I'd expect a major backpressure change requiring a tune for drivability.
jml is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 12:15 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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