E90Post
 


Extreme Powerhouse
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Trying to find a (mostly) CA smog legal setup for N55/335i



Reply
 
Thread Tools Search this Thread
      01-17-2017, 01:08 PM   #1
SmallChicken
Registered
4
Rep
2
Posts

Drives: 2013 E92 335i
Join Date: Jan 2017
Location: California

iTrader: (0)

Red face Trying to find a (mostly) CA smog legal setup for N55/335i

Hi all - new here.

I have a completely bone stock E92 335i and Iím looking for the best way to get a (semi) conservative increase in power. My mechanical knowledge is admittedly pretty low and this is my first BMW, so please forgive any cluelessness.

I know thereís tons of options available out there. The catch for me is, Iím in California and want to try to stay smog legal. I went through swapping back to stock parts on my previous car whenever it came time for a smog check and itís just a minor hassle I donít care to deal with anymore.

Iím not looking to build a track car or anything, Iím reasonably happy with the stock power - just looking for a little boost (maybe 50-60ish HP). This is what I was thinking of doing:

JB4 (not for use in CA, but Iím assuming thereíd be no problems passing in Map 0)
Injen Cold Air Intake (C.A.R.B certified)
Mishimoto Intercooler
Cobb Charge Pipe (Iíve read the stock plastic ones can crack at higher than stock boost)

Would this be a reasonable path to take? Would the intake be mostly for sound and a waste of money (performance wise)?
Would it be bottlenecked due to the lack of a downpipe + exhaust? As far as I know, even catted downpipes are off limits here, and the legal exhaust options are very limited.

Any advice/alternate set-ups would be greatly appreciated. Thanks in advance!
Appreciate 0
      01-17-2017, 01:58 PM   #2
Kevin39
Lieutenant
162
Rep
411
Posts

Drives: 2011 E90 N55
Join Date: Feb 2016
Location: Indiana

iTrader: (0)

Yeah the intake is mostly for sound. An intercooler, charge pipe, and a tune is a good start.
Appreciate 2
      01-17-2017, 05:51 PM   #3
Johnny Boost
Colonel
No_Country
324
Rep
2,013
Posts

Drives: '21 M850i GC
Join Date: May 2013
Location: TBD

iTrader: (0)

Yes you'd pass inspection with those mods. If you like the intake then go for it. Make sure that you drive the car for a few days in map 0 before you try to pass emissions.
__________________
WedgePerformance E40 MHD | Performance Exhaust Mod | BMS DP | Vibrant 1790 | BMS Intake | VRSF CP | xHP Stage 3
Michelin PSS | M3 Control Arms
LUX v4 LEDs | Shadowline Grills | Lip Spoiler
Appreciate 1
      01-19-2017, 02:07 PM   #4
surfcali
Second Lieutenant
surfcali's Avatar
United_States
245
Rep
240
Posts

Drives: 2016 M3 Mineral White
Join Date: Nov 2012
Location: Westwood

iTrader: (1)

could you take a pic of the CARB sticker for your injen intake? I can't find mine.
Appreciate 0
      01-19-2017, 10:18 PM   #5
racermp
Major
racermp's Avatar
United_States
190
Rep
937
Posts

Drives: F30 330i
Join Date: Apr 2013
Location: Houston, TX

iTrader: (1)

Mhd stage 1+
Appreciate 2
      01-22-2017, 06:42 PM   #6
ShaneN55
Member
United_States
87
Rep
155
Posts

Drives: BMW M3
Join Date: Jun 2016
Location: California

iTrader: (0)

Garage List
2011 BMW 335i  [0.00]
1966 Mustang  [0.00]
Quote:
Originally Posted by SmallChicken View Post
Hi all - new here.

I have a completely bone stock E92 335i and Iím looking for the best way to get a (semi) conservative increase in power. My mechanical knowledge is admittedly pretty low and this is my first BMW, so please forgive any cluelessness.

I know thereís tons of options available out there. The catch for me is, Iím in California and want to try to stay smog legal. I went through swapping back to stock parts on my previous car whenever it came time for a smog check and itís just a minor hassle I donít care to deal with anymore.

Iím not looking to build a track car or anything, Iím reasonably happy with the stock power - just looking for a little boost (maybe 50-60ish HP). This is what I was thinking of doing:

JB4 (not for use in CA, but Iím assuming thereíd be no problems passing in Map 0)
Injen Cold Air Intake (C.A.R.B certified)
Mishimoto Intercooler
Cobb Charge Pipe (Iíve read the stock plastic ones can crack at higher than stock boost)

Would this be a reasonable path to take? Would the intake be mostly for sound and a waste of money (performance wise)?
Would it be bottlenecked due to the lack of a downpipe + exhaust? As far as I know, even catted downpipes are off limits here, and the legal exhaust options are very limited.

Any advice/alternate set-ups would be greatly appreciated. Thanks in advance!
Live in CA and currently running JB4+Catted Downpipes. Would recommend getting CEL delete. Also purchasing Intercooler and Chargepipe soon.
__________________
E92 M3, 958 Cayenne S, 1966 & 1968 Mustang @ 958.shane
Appreciate 1
      01-23-2017, 04:10 AM   #7
SmallChicken
Registered
4
Rep
2
Posts

Drives: 2013 E92 335i
Join Date: Jan 2017
Location: California

iTrader: (0)

Thanks everyone for all the replies. Great info. I think I'll probably forego the intake for now.

Quote:
Originally Posted by ShaneN55 View Post
Live in CA and currently running JB4+Catted Downpipes. Would recommend getting CEL delete. Also purchasing Intercooler and Chargepipe soon.
Nice. Which one did you get - Cobb? AR? I take it you had no problems with the smog check? Did you notice much of a performance gain vs. before??
Appreciate 0
      01-23-2017, 06:12 PM   #8
ShaneN55
Member
United_States
87
Rep
155
Posts

Drives: BMW M3
Join Date: Jun 2016
Location: California

iTrader: (0)

Garage List
2011 BMW 335i  [0.00]
1966 Mustang  [0.00]
Quote:
Originally Posted by SmallChicken View Post
Thanks everyone for all the replies. Great info. I think I'll probably forego the intake for now.



Nice. Which one did you get - Cobb? AR? I take it you had no problems with the smog check? Did you notice much of a performance gain vs. before??
VRSF Catted. Just got it installed today. (Tried it myself before I took it to a shop massive pain in the ass but it was cheap to have someone do) HUGE power difference and sound difference. Downpipe+PPK (got it from Joe)+JB4 is insane!!! Haven't had to smog yet but I should be fine
__________________
E92 M3, 958 Cayenne S, 1966 & 1968 Mustang @ 958.shane
Appreciate 1
      01-25-2017, 02:27 AM   #9
YouAreMyWorld
///Project Aura
YouAreMyWorld's Avatar
United_States
386
Rep
889
Posts

Drives: Mineral White ///M-Sport 335i
Join Date: Feb 2015
Location: Los Angeles

iTrader: (0)

Quote:
Originally Posted by ShaneN55 View Post
VRSF Catted. Just got it installed today. (Tried it myself before I took it to a shop massive pain in the ass but it was cheap to have someone do) HUGE power difference and sound difference. Downpipe+PPK (got it from Joe)+JB4 is insane!!! Haven't had to smog yet but I should be fine
If I may ask, how much did you pay for install? I'm looking into getting DP's soon, so I just want to see if I should shop around based on your install price. Plus I'm leaning heavily on the "reinstall DP" for emissions purposes as I don't want to leave anything up to chance when the time comes around.
Appreciate 0
      01-25-2017, 09:42 AM   #10
ShaneN55
Member
United_States
87
Rep
155
Posts

Drives: BMW M3
Join Date: Jun 2016
Location: California

iTrader: (0)

Garage List
2011 BMW 335i  [0.00]
1966 Mustang  [0.00]
Quote:
Originally Posted by YouAreMyWorld View Post
If I may ask, how much did you pay for install? I'm looking into getting DP's soon, so I just want to see if I should shop around based on your install price. Plus I'm leaning heavily on the "reinstall DP" for emissions purposes as I don't want to leave anything up to chance when the time comes around.
Payed $200 at SSR Performance in Santa Ana. Great shop with nice workers! Very knowledgeable with BMW's and helped me a lot with my build.
__________________
E92 M3, 958 Cayenne S, 1966 & 1968 Mustang @ 958.shane
Appreciate 1
      01-26-2017, 08:23 AM   #11
YouAreMyWorld
///Project Aura
YouAreMyWorld's Avatar
United_States
386
Rep
889
Posts

Drives: Mineral White ///M-Sport 335i
Join Date: Feb 2015
Location: Los Angeles

iTrader: (0)

Quote:
Originally Posted by ShaneN55 View Post
Payed $200 at SSR Performance in Santa Ana. Great shop with nice workers! Very knowledgeable with BMW's and helped me a lot with my build.
Thank you very much, I appreciate the information!
Appreciate 0
      01-26-2017, 03:24 PM   #12
jlegelis
Private First Class
jlegelis's Avatar
United_States
33
Rep
129
Posts

Drives: 2013 E92 N55 MT MSport
Join Date: Jan 2013
Location: Boston, MA

iTrader: (0)

Greetings from MA - we're in the same boat here with OBD tests, etc. Guessing a catted downpipe is required. Does anyone know if the new VRSF catted is prone to CELs?
Appreciate 0
      01-27-2017, 09:11 AM   #13
ANMVQ
Lieutenant
ANMVQ's Avatar
114
Rep
399
Posts

Drives: 2011 335XI Sedan
Join Date: Sep 2015
Location: Work :)

iTrader: (0)

Quote:
Originally Posted by jlegelis View Post
Greetings from MA - we're in the same boat here with OBD tests, etc. Guessing a catted downpipe is required. Does anyone know if the new VRSF catted is prone to CELs?
In MA also!
Any HFC with throw a CEL at some point because of the increased flow. I had Z1 HFC's on my G37 and had a CEL 2 twice for cat efficiency in 2 years, just cleared it with my ECUTEK . I had no issues with getting my stickers those two years with ECUTEK and the HFC's. I know BWM is a different animal.


Op any thoughts on Dinan? They have a half off sale right now!
Appreciate 0
      07-23-2017, 04:35 AM   #14
DYOOS
First Lieutenant
DYOOS's Avatar
United_States
88
Rep
325
Posts

Drives: 335i E90 N55
Join Date: Jul 2017
Location: Bay Area

iTrader: (0)

I'm in the same boat as the OP. I live in CA, and want to stay smog legal for the most part. I'm all stock right now, but looking to start my performance build with the following:

- JB4 or MHD
- VRSF Charge Pipe or BMS Charge Pipe
- Mishimoto Intercooler
- BMS Intake or Injen Intake

The JB4 I'd plan on running map 0 for a week or before getting a smog. Charge pipe should be fine in general as long as it is not chrome or anything that won't pass a visual check. Same goes with the intercooler. My question is, would it be worth it to get an intake? Injen intake is CARB legal, but is it better to put that money towards another performance part that'll help me increase power much more? Downpipes? Exhaust? Injectors?

Basically looking to reach the 400WHP/WTQ range, while staying CA smog legal. If that is possible. The upgrades listed above is only a start to reaching my goal. Any advice/tips would be appreciated. Cheers!

Last edited by DYOOS; 07-23-2017 at 04:52 AM..
Appreciate 0
      07-25-2017, 01:24 PM   #15
DrRobert
Normal Person
United_States
146
Rep
862
Posts

Drives: 2011 E90 335i
Join Date: May 2014
Location: paradise

iTrader: (0)

Garage List
2011 E90 335i  [0.00]
DP replacement (i.e. removing the OEM catalytic converters) is when you need to start worrying about passing smog in CA. You should be OK with the other mods. There is a DP fix available for those without cats as others mentioned; you can search for more info on that. A catted DP is another alternative but I have not seen a much info regarding which ones can pass CA without the DP fix. I recently passed CA smog with a HJS HFC without the DP fix. But unfortunately AFAIK nobody makes a catted DP for N55 E90s using HJS cats. I had one retrofitted into an OEM DP, and it was very expensive.
Appreciate 0
      07-25-2017, 05:05 PM   #16
mike@x-ph.com
BimmerPost Supporting Vendor
mike@x-ph.com's Avatar
United_States
23458
Rep
189,283
Posts


Drives: 07-335/12-328/18-M4/21-M4CP
Join Date: Sep 2013
Location: Las Vegas

iTrader: (23)

I would do JB4 (not Carb legal yet), VRSF CP, Injen Intake, Wagner EVO I intercooler
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/

Phone number 702-494-9435
Appreciate 0
      07-25-2017, 05:30 PM   #17
DrRobert
Normal Person
United_States
146
Rep
862
Posts

Drives: 2011 E90 335i
Join Date: May 2014
Location: paradise

iTrader: (0)

Garage List
2011 E90 335i  [0.00]
Quote:
Originally Posted by RepBolt View Post
I'm in the same boat as the OP. I live in CA, and want to stay smog legal for the most part. I'm all stock right now, but looking to start my performance build with the following:

- JB4 or MHD
- VRSF Charge Pipe or BMS Charge Pipe
- Mishimoto Intercooler
- BMS Intake or Injen Intake

The JB4 I'd plan on running map 0 for a week or before getting a smog. Charge pipe should be fine in general as long as it is not chrome or anything that won't pass a visual check. Same goes with the intercooler. My question is, would it be worth it to get an intake? Injen intake is CARB legal, but is it better to put that money towards another performance part that'll help me increase power much more? Downpipes? Exhaust? Injectors?

Basically looking to reach the 400WHP/WTQ range, while staying CA smog legal. If that is possible. The upgrades listed above is only a start to reaching my goal. Any advice/tips would be appreciated. Cheers!
Air intake will not give you a lot of bang for the buck if it is power you are after. Intercooler, CP and JB4 or a custom tune are good ideas. I don't think it is realistic for you to expect to reach 400 WHP and stay CA smog legal, at least not on crap CA pump gas.
Appreciate 0
      07-25-2017, 05:33 PM   #18
Jdub679
Captain
85
Rep
644
Posts

Drives: 2011 BMW 335i coupe M Sport
Join Date: Jan 2011
Location: Irvine, CA

iTrader: (1)

Quote:
Originally Posted by DrRobert View Post
Air intake will not give you a lot of bang for the buck if it is power you are after. Intercooler, CP and JB4 or a custom tune are good ideas. I don't think it is realistic for you to expect to reach 400 WHP and stay CA smog legal, at least not on crap CA pump gas.
I agree with this. And I've personally shied away from a downpipe (catted or otherwise) because of CA's smog laws. I would put my vote in for MHD though. I had my JB4 for 5 yrs and it was great, but it's a PITA to remove the thing every time you go into service. Flashing the MHD is about as easy as things get.
Appreciate 0
      07-25-2017, 06:36 PM   #19
DYOOS
First Lieutenant
DYOOS's Avatar
United_States
88
Rep
325
Posts

Drives: 335i E90 N55
Join Date: Jul 2017
Location: Bay Area

iTrader: (0)

Quote:
Originally Posted by Jdub679 View Post
I agree with this. And I've personally shied away from a downpipe (catted or otherwise) because of CA's smog laws. I would put my vote in for MHD though. I had my JB4 for 5 yrs and it was great, but it's a PITA to remove the thing every time you go into service. Flashing the MHD is about as easy as things get.
What steps do you have to take with the MHD to be able to pass a smog?
Appreciate 0
      07-25-2017, 06:46 PM   #20
Jdub679
Captain
85
Rep
644
Posts

Drives: 2011 BMW 335i coupe M Sport
Join Date: Jan 2011
Location: Irvine, CA

iTrader: (1)

Quote:
Originally Posted by RepBolt View Post
What steps do you have to take with the MHD to be able to pass a smog?
I would personally just flash back to stock. Might take a little bit of time, but it doesn't have me sweating under my hood.

I "think" you can get a smog check with MHD installed, as long as the "catted downpipes" option is checked and all your readiness sensors are up and running. Someone please correct me if I am wrong.
Appreciate 0
      07-25-2017, 11:33 PM   #21
DrRobert
Normal Person
United_States
146
Rep
862
Posts

Drives: 2011 E90 335i
Join Date: May 2014
Location: paradise

iTrader: (0)

Garage List
2011 E90 335i  [0.00]
Quote:
Originally Posted by RepBolt View Post
What steps do you have to take with the MHD to be able to pass a smog?
I flashed back to stock and passed with a catted DP.
Appreciate 0
      07-26-2017, 01:25 AM   #22
DYOOS
First Lieutenant
DYOOS's Avatar
United_States
88
Rep
325
Posts

Drives: 335i E90 N55
Join Date: Jul 2017
Location: Bay Area

iTrader: (0)

Quote:
Originally Posted by Jdub679 View Post
I would personally just flash back to stock. Might take a little bit of time, but it doesn't have me sweating under my hood.

I "think" you can get a smog check with MHD installed, as long as the "catted downpipes" option is checked and all your readiness sensors are up and running. Someone please correct me if I am wrong.
Quote:
Originally Posted by DrRobert View Post
I flashed back to stock and passed with a catted DP.
Excuse my ignorance as I'm still learning more about MHD. Like JB4, do you have to flash it back to stock and drive a certain amount of miles before taking it in to smog?

Last edited by DYOOS; 07-26-2017 at 01:55 AM..
Appreciate 0
Reply

Bookmarks

Tags
335i, california, n55, smog

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



All times are GMT -5. The time now is 10:14 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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