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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 AR 4" Catless Downpipe Fuel Smell? Is It That Bad?



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      07-20-2011, 12:35 AM   #23
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its really not that bad. I honestly dont smell it at all nemore
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      07-20-2011, 04:33 AM   #24
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Quote:
Originally Posted by mrj25 View Post
I don't have a vishnu catless dp, though I have heard from others the smell is an annoyance. I need to make a trip out to LTBMW and smell a car that has a catless dp.
that would be eye - u can check out my bimmer if u want.
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      07-21-2011, 08:36 AM   #25
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Im working on a prototype N55 catted DP with AR design...no smell as far as I know and it still delivers a bump in hp.

Unfortunatley my beta tester left for a two month vacation to Italy and Greece...so I have to wait til september to resume..
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      07-21-2011, 08:49 AM   #26
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Installing my AR DP in 2day's time. I was even told by the workshop that I dont even need the dp fix. Will update about the smell.
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      07-21-2011, 09:14 AM   #27
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Quote:
Originally Posted by |2ed View Post
Installing my AR DP in 2day's time. I was even told by the workshop that I dont even need the dp fix. Will update about the smell.
Are you having the catless or catted ar dp installed today?
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      07-21-2011, 09:21 AM   #28
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If you can smell roses, you will smell the catless smell. If you can't smell your food you eat, then you will not smell the catless smell... Just like some people can't smell themselves when they smell. Lol
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      07-21-2011, 09:29 AM   #29
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Quote:
Originally Posted by keikdasneak View Post
If you can smell roses, you will smell the catless smell. If you can't smell your food you eat, then you will not smell the catless smell... Just like some people can't smell themselves when they smell. Lol
smell = 8 in that sentence...
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      07-21-2011, 09:58 AM   #30
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Quote:
Originally Posted by mrj25 View Post
Are you having the catless or catted ar dp installed today?
AR only introduced the catless 4"dp. But its abit strange when the workshop mentioned that no CEL or any other error. This workshop is the distributor of JB3in my country. I checked with them on the smell as well and they gave me a firm answer = NO smell!! after installing for a few customers.

Only way is to test it out myself...
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      07-23-2011, 04:54 AM   #31
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Installed today and driven the car for 30minutes... I was expecting a really foul smell but to my surprise, there isnt any.

Exhaust is more aggressive and i was expecting a loud 'pop' during upshift or downshift, but there isnt any.
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      07-23-2011, 05:01 AM   #32
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I have the DP on my N55, and yes, it does smell

N54 owners comment on it, friends comment on it, and I notice it every time I have my windows down and idle. I don't really mind it too much though
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      07-23-2011, 12:57 PM   #33
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Quote:
Originally Posted by Sloppy View Post
smell = 8 in that sentence...
Lmao
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      07-23-2011, 04:04 PM   #34
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Quote:
Originally Posted by |2ed View Post
Installed today and driven the car for 30minutes... I was expecting a really foul smell but to my surprise, there isnt any.

Exhaust is more aggressive and i was expecting a loud 'pop' during upshift or downshift, but there isnt any.
6AT? You won't hear it unless you let off the gas between shifts.
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      07-24-2011, 01:27 PM   #35
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Originally Posted by shockin330i View Post
6AT? You won't hear it unless you let off the gas between shifts.
So no sound when using DCT to shift?

In addition to the smell, one more day of testing with windows down. Stopped at traffic light. Somehow i think i do get alittle bit of smell. I think this is very subjective. Going to try more.
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      07-24-2011, 03:46 PM   #36
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Quote:
Originally Posted by |2ed View Post
So no sound when using DCT to shift?

In addition to the smell, one more day of testing with windows down. Stopped at traffic light. Somehow i think i do get alittle bit of smell. I think this is very subjective. Going to try more.
What tune do u have?
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      07-24-2011, 07:47 PM   #37
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Hey guys I'm leaning towards not keeping the AR catless dp so if you want it or know anyone interested, here is the link. It is still brand new in box.

http://www.e90post.com/forums/showthread.php?t=563147
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      07-26-2011, 12:08 PM   #38
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Quote:
Originally Posted by keikdasneak View Post
What tune do u have?
JB3.
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      07-26-2011, 03:37 PM   #39
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Yes, it smells. BADLY. Especially if you are in an underground parking lot
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      07-26-2011, 03:54 PM   #40
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Quote:
Originally Posted by tscdennab View Post
Yes, it smells. BADLY. Especially if you are in an underground parking lot
Aren't all the cars catless in Europe?..
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      07-27-2011, 05:31 AM   #41
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Catless DP = Smell like sh1t
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      07-27-2011, 05:42 AM   #42
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^ not really
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      07-27-2011, 05:27 PM   #43
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Quote:
Originally Posted by IancoleTX View Post
Is there an install guide anywhere? I'm gonna need one shortly
here is a brief DIY for N55 335xi
the location of O2 sensors is different for 335i though!!
http://www.e90post.com/forums/showpo...1&postcount=27
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      07-27-2011, 05:42 PM   #44
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Quote:
Originally Posted by tibra1 View Post
Aren't all the cars catless in Europe?..

and the woman go without tops at the beaches
and 50 year old men run around in thongs.
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