E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Canada > Calling All Member With Catless Downpipes!



Reply
 
Thread Tools Search this Thread
      01-19-2013, 05:38 PM   #1
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Cool Calling All Member With Catless Downpipes!

So picked up a set of VRSF catless DPs from a forum member here and had them installed by Rocco over at RMP. Started up the car and everything seems to run smooth except for the fact that theres a lot of vibration on idle. No misfires and the vibration is not excessive but its definately noticeable. I can't hear any leaks, and no rattling or anything on acceleration. The vibration seems to lessen after the car warms up a bit but doesn't resolve. Gonna take it back to RMP later next week but I'm wondering if anyone has any advise. Also the O2 sensors seem to be okay. Searched up previous posts but cant really find an answer.

BTW I have 2007 e92 BMW 335i. Cobb Stage 2 Aggressive. Performance exhuast. BMS DCI. ER CP with HKS SSQV4 BOV.

Thanks in advance guys.

Last edited by surendrant; 01-19-2013 at 06:15 PM.
surendrant is offline   Canada
0
Reply With Quote
      01-19-2013, 06:34 PM   #2
nitehawk
Lieutenant Colonel
 
nitehawk's Avatar
 
Drives: e92 335i 6MT
Join Date: May 2011
Location: Toronto

Posts: 1,567
iTrader: (15)

Garage List
No rattle, just vibration? I'm guessing you already checked for codes?
Try resetting your adaptations with the Cobb AP, see if that helps. If the O2 sensors were switched by mistake, you''d get misfires and codes right away. Hopefully they werent damaged during the install...
nitehawk is offline   Canada
0
Reply With Quote
      01-19-2013, 06:54 PM   #3
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Okay ill try that. Thanks man. Yea I hope not. Its not a really rough idle like youd expect from switched O2 sensors..and the rpm are wavering at all. I almost suspect a leak.
surendrant is offline   Canada
0
Reply With Quote
      01-20-2013, 03:30 PM   #4
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Tried resetting adaptation values. No luck
surendrant is offline   Canada
0
Reply With Quote
      01-20-2013, 06:54 PM   #5
Zebra99
Colonel
 
Zebra99's Avatar
 
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario

Posts: 2,166
iTrader: (4)

Garage List
Quote:
Originally Posted by surendrant View Post
Tried resetting adaptation values. No luck
Hey dude,

Your vibration may simply be because of the lack of backpressure at warm-up. I know this may sound a little crazy, but when I had them on the car always vibrated for the first 60s and as soon as valve opened it was warm and cmooth sailing from there.

If you do notice a little bit of rattle it's because the open(cattless) DP's will amplify the tiniest bit of WG rattle. When you up the boost you'll always have a bit of rattle even if your WG are perfect.

I wonder if the gasket was installed properly and possibly cracked? Put some km's on it and let us know!
Zebra99 is offline   Canada
0
Reply With Quote
      01-20-2013, 09:27 PM   #6
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Thanks for the input bro. I had new gaskets put on with install so I dont think theyre cracked. But maybe theres a leak. I guess Ill find out when the car is on the hoist.
surendrant is offline   Canada
0
Reply With Quote
      01-21-2013, 09:40 AM   #7
matty76
Enlisted Member
 
Drives: 2008 335i
Join Date: Apr 2012
Location: hamilton

Posts: 48
iTrader: (0)

looking for some DP's, where is the best place to buy them? and what if any are the concerns of install? I already have DCI and JB4 installed. Sorry not trying to highjack your thread.
matty76 is offline  
0
Reply With Quote
      01-21-2013, 11:22 AM   #8
abhishriv
Major
 
Drives: 2007 335i Coupe (Space grey)
Join Date: Oct 2011
Location: Toronto

Posts: 1,190
iTrader: (0)

How's the sound with the vrsf and pe? Thinking about dps this summer
abhishriv is offline  
0
Reply With Quote
      01-21-2013, 02:41 PM   #9
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Quote:
Originally Posted by matty76 View Post
looking for some DP's, where is the best place to buy them? and what if any are the concerns of install? I already have DCI and JB4 installed. Sorry not trying to highjack your thread.
No problem man. A good place to pick up downpipes is either used from forum members or mike@n54tuning.com. he has pretty good prices from what Ive seen. The only concerb I would say is noise. Your car exhaust note gets louder and you can head the turbos spool up inside the car. Plus its a really tight space to work in so if youre gonna do it yourself youre gonna have a heck of a time. Theres also a smell associated with having cats deleted.
surendrant is offline   Canada
0
Reply With Quote
      01-21-2013, 02:48 PM   #10
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Quote:
Originally Posted by abhishriv View Post
How's the sound with the vrsf and pe? Thinking about dps this summer
Man its loud! Not too bad on idle in my opinion but when you open up the throttle it growls. I park my car at the end of the driveway so I dont bother my next door neighbors during cold startup. Dr G was right about it being raspy. However, I kinda like the sound and the rasp is tolerable for me. Im debating if ill throw in some resonators or not. Your welcome to meet up and listen to the car. I know your in the west end but at least youll have an idea in person how it sounds
surendrant is offline   Canada
0
Reply With Quote
      01-21-2013, 07:43 PM   #11
abhishriv
Major
 
Drives: 2007 335i Coupe (Space grey)
Join Date: Oct 2011
Location: Toronto

Posts: 1,190
iTrader: (0)

Quote:
Originally Posted by surendrant View Post
Man its loud! Not too bad on idle in my opinion but when you open up the throttle it growls. I park my car at the end of the driveway so I dont bother my next door neighbors during cold startup. Dr G was right about it being raspy. However, I kinda like the sound and the rasp is tolerable for me. Im debating if ill throw in some resonators or not. Your welcome to meet up and listen to the car. I know your in the west end but at least youll have an idea in person how it sounds
awesome, yea that would be great maybe the weekend after next i will make it out to the meet and i can hear it or we can meet up another time
abhishriv is offline  
0
Reply With Quote
      01-21-2013, 08:12 PM   #12
Wolf 335
Lieutenant
 
Wolf 335's Avatar
 
Drives: E92 335i
Join Date: Aug 2012
Location: GTA

Posts: 470
iTrader: (0)

Is there any sense in putting catless downpipes on a stock 335i?

Any gains?

Does it pass emissions test?
Wolf 335 is offline   Canada
0
Reply With Quote
      01-21-2013, 09:10 PM   #13
Zebra99
Colonel
 
Zebra99's Avatar
 
Drives: 2011 335is E93
Join Date: Aug 2011
Location: Ontario

Posts: 2,166
iTrader: (4)

Garage List
Quote:
Originally Posted by Wolf 335
Is there any sense in putting catless downpipes on a stock 335i?

Any gains?

Does it pass emissions test?
Lol is this serious question wolf?

Cattless will open up 20-30whp on a FBO car. You'll automatically feel the difference and you can run higher boost. Much more efficiency and responsive.

Take the plunge, you can't go wrong. As for passing emissions, I've heard of guys passing (barely) with keeping on their secondary cats.

Otherwise put on OEM catts, reset adaption and run it for a little bit and then Test.
Zebra99 is offline   Canada
0
Reply With Quote
      01-21-2013, 11:36 PM   #14
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Drive clean ontario has switched from the sniffer to an obd II scanner. So you should be able to just install the bms o2 srnsor fix and you should be good!
surendrant is offline   Canada
0
Reply With Quote
      01-22-2013, 07:45 AM   #15
Tzu
Major
 
Drives: 335i
Join Date: Jun 2010
Location: Toronto

Posts: 1,390
iTrader: (1)

Quote:
Originally Posted by surendrant View Post
Drive clean ontario has switched from the sniffer to an obd II scanner. So you should be able to just install the bms o2 srnsor fix and you should be good!
Since when? I havn't heard that...
Tzu is offline   Canada
0
Reply With Quote
      01-22-2013, 03:56 PM   #16
surendrant
Second Lieutenant
 
surendrant's Avatar
 
Drives: 2007 BMW E92 335i
Join Date: Feb 2012
Location: Scarborough, ON

Posts: 286
iTrader: (2)

Garage List
2007 BMW 335i  [4.50]
Quote:
Originally Posted by Tzu View Post
Since when? I havn't heard that...
Since Jan 1st 2013.Check it out...

http://www.ene.gov.on.ca/environment...OD_101127.html
surendrant is offline   Canada
0
Reply With Quote
      01-22-2013, 09:27 PM   #17
Embolus*335i
Private First Class
 
Embolus*335i's Avatar
 
Drives: E90 AW 335i
Join Date: Nov 2010
Location: Toronto

Posts: 163
iTrader: (13)

How would you say the "note" of the exhaust is different now that you've paired the Catless DP's with the PE? From my research most say it changes it and not for the better...it looses the high end note near the higher rpm's with the PE. Was it for the better or worst in your opinion?

This is the only thing really holding me back from getting some DP's, aside from the actual noise level since I find my PE already close to as loud as I'd want my car to be.

Plus, to deal with the rasp/drone, some people say resonators is the answer. So wouldn't getting the AR Catless resonated DP's, as an example, solve this issues without getting the DP's and resonators separately?

If someone can help answer some of these questions I'd greatly appreciate it!
__________________
E90 Pre-LCI 335i Alpine White
COBB Stage 1 | M-Tech Kit + Performance Rear Diffuser | BBS LMs 19x8.5 +33/19x9.5 +33 on Hankook V12 235/265 | PE | CIC IDrive Retrofit | M3 Cluster Gauge | CF Kidney Grills | Custom BSM Interior Trim | M3 Steering Wheel | Blacklines | Performance Shifter/Handbrake Boot | MTEC V3 AE |
Embolus*335i is offline   Canada
0
Reply With Quote
      01-22-2013, 09:57 PM   #18
nitehawk
Lieutenant Colonel
 
nitehawk's Avatar
 
Drives: e92 335i 6MT
Join Date: May 2011
Location: Toronto

Posts: 1,567
iTrader: (15)

Garage List
Quote:
Originally Posted by Embolus*335i View Post
Plus, to deal with the rasp/drone, some people say resonators is the answer. So wouldn't getting the AR Catless resonated DP's, as an example, solve this issues without getting the DP's and resonators separately?

If someone can help answer some of these questions I'd greatly appreciate it!
I've asked this question to someone who had the AR resonated downpipes. Those resonators are simply too small to eliminate the 5.5k+ rpm rasp with PE. Underfloor resonators appear to be the only way
nitehawk is offline   Canada
0
Reply With Quote
      01-23-2013, 09:26 AM   #19
dizaro
Private
 
Drives: 07 335Xi
Join Date: May 2012
Location: toronto

Posts: 52
iTrader: (0)

So with the new drive clean test, will the DP fix solve the emission problem with the catless DP??

I have a XI there's no catted DP available for my car....

also, anyone here installed the DP with stock exhaust???

Last edited by dizaro; 01-23-2013 at 10:03 AM.
dizaro is offline  
0
Reply With Quote
      01-23-2013, 02:59 PM   #20
Devas
Second Lieutenant
 
Drives: 2011 E90 M3 / 2012 F30 335i
Join Date: May 2010
Location: York Region

Posts: 251
iTrader: (1)

Quote:
Originally Posted by dizaro View Post
So with the new drive clean test, will the DP fix solve the emission problem with the catless DP??

I have a XI there's no catted DP available for my car....

also, anyone here installed the DP with stock exhaust???
I have DP catless with stock exhaust, whats up?
__________________
COBB AP | ETS FMIC | ETS DownPipe | ETS ChargePipe | Gruppe M Ram Air Intake System | Bilstein PSS10 Coil-Over Kit | HRE P40
Devas is offline   Canada
0
Reply With Quote
      01-23-2013, 04:23 PM   #21
Dr. G
Brigadier General
 
Dr. G's Avatar
 
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario

Posts: 4,887
iTrader: (32)

Garage List
e92 BMW 335i  [4.35]
Quote:
Originally Posted by Embolus*335i View Post
How would you say the "note" of the exhaust is different now that you've paired the Catless DP's with the PE? From my research most say it changes it and not for the better...it looses the high end note near the higher rpm's with the PE. Was it for the better or worst in your opinion?

This is the only thing really holding me back from getting some DP's, aside from the actual noise level since I find my PE already close to as loud as I'd want my car to be.

Plus, to deal with the rasp/drone, some people say resonators is the answer. So wouldn't getting the AR Catless resonated DP's, as an example, solve this issues without getting the DP's and resonators separately?

If someone can help answer some of these questions I'd greatly appreciate it!
AR resonated are a rare breed and I have never heard a set in person and I usually don't like to go off what people on forums say so I'm not sure about them, but for the price you would pay for them it seems easier to just put the resonators into the midpipes.

Some people don't mind the rasp and some, like myself, hate it. When the car is fully warmed up in summer it's not all that raspy though, in the winter it's a whole new story haha. I would just get regular catless and see how it is and if you don't like the rasp the resonators area quick fix. The rasp comes in the upper rpm's, when giving part throttle at WOT I've noticed the car just flies through rpm's you don't notice the rasp as much.

The PE does sound MEAN and pops and gurgles a lot catless. With the cold temps as of late I'm firing off shotgun sounds every time I let off the accelerator. When you give the car a bit of throttle from a standstill it has a nice deep grunt as well.
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
Dr. G is offline  
0
Reply With Quote
      01-23-2013, 04:24 PM   #22
Dr. G
Brigadier General
 
Dr. G's Avatar
 
Drives: Black e92 335i
Join Date: Apr 2010
Location: Brampton, Ontario

Posts: 4,887
iTrader: (32)

Garage List
e92 BMW 335i  [4.35]
Surendrant how do cold starts sound in the morning in -15 ??? LOLLL

It's funny being in a public parking lot after the car has sat outside all day and having to fire it up at the end of the day after it's nice and cool
__________________
JB4 / OSS Angel Eyes / Downpipes / F1-Racewerks FMIC / Custom Meth Kit / BMS DCI / ER Chargepipe / HKS BOV / BMS Meth Elbow / BMW Performance Exhaust / Carbon Fiber Inlay Quad Tips / 19" Miro 111 / Front Aero Lip / M3 Sides / VRS CSL Trunk / Mtech Rear / DD CF Quad Finned Diffuser / LCI Tails / BBK / Smoked Reflectors / F1 Euphoria LED Interior / License LED's / GT 5000k Corners / 5000k HID Fogs / Air Scoops / LED Turn Signals / FK Silverline Coilovers / HPA endlinks / Vibrant Resonators / Osram CBI 5000k D1S
Dr. G is offline  
0
Reply With Quote
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 05:48 PM.




e90post
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