Question on whether or not I should install my DPs yet...

flukey · 05-10-2009, 11:10 AM

I've got a E90 335xi and I'm awaiting install of my full Borla exhaust system (including secondary cat delete pipes) and my UR CAI in a couple of weeks.

I have UR catless downpipes as well. I wasn't sure if I should get them installed because I do not have an aftermarket FMIC or any tune whatsoever. I probably won't be getting either of those for several months as funds are tight at the moment.

What do you guys think... Is it worth it to install a fully catless system without any tune? Also, for those running full catless (DPs + exhaust), how bad is the smell? I've read contradicting threads about the smell of running a full catless system.

Let me know what you guys think. Thanks!

roozie2001 · 05-10-2009, 11:36 AM

I'd wait atleast till the exhaust and cai arrive and install all at once that way it sounds amazing and u can feel more on the butt dyno. More enjoyable.

I335 · 05-10-2009, 12:14 PM

Can you pass state inspection without cats?

ianthegreat · 05-10-2009, 12:21 PM

Quote:

Originally Posted by I335

Can you pass state inspection without cats?

seriously?

flukey · 05-10-2009, 01:12 PM

I'm in Iowa... no state inspections!

flukey · 05-11-2009, 01:18 PM

wow... no one has a suggestion or any insight?

ThorsHammer · 05-11-2009, 01:22 PM

Quote:

Originally Posted by flukey

wow... no one has a suggestion or any insight?

If you're gonna do it at all, go ahead. No reason to wait. You'll notice a difference.

And yes, you will notice the smell. I went from Riss catless to Riss catted because of the smell and noise. It was too much for me (with a catback exhaust).

It's not bad, per se...but it's noticeable.

05-10-2009, 11:10 AM	#1
flukey Go big or go home! 53 Rep 948 Posts Drives: E90 335xi Join Date: Jun 2007 Location: Iowa iTrader: (9)	Question on whether or not I should install my DPs yet... I've got a E90 335xi and I'm awaiting install of my full Borla exhaust system (including secondary cat delete pipes) and my UR CAI in a couple of weeks. I have UR catless downpipes as well. I wasn't sure if I should get them installed because I do not have an aftermarket FMIC or any tune whatsoever. I probably won't be getting either of those for several months as funds are tight at the moment. What do you guys think... Is it worth it to install a fully catless system without any tune? Also, for those running full catless (DPs + exhaust), how bad is the smell? I've read contradicting threads about the smell of running a full catless system. Let me know what you guys think. Thanks! __________________
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05-10-2009, 11:36 AM	#2
roozie2001 Just some guy 49 Rep 1,531 Posts Drives: 2008 White 335i sedan Join Date: Apr 2008 Location: Houston, TX iTrader: (4)	I'd wait atleast till the exhaust and cai arrive and install all at once that way it sounds amazing and u can feel more on the butt dyno. More enjoyable. __________________ 2008 BMW 335i/Sedan/Alpine White/Terra/Steptronic/Premium Package/Sports package/Comfort Access/USB/Sirius
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05-10-2009, 12:14 PM	#3
I335 Brigadier General 123 Rep 4,249 Posts Drives: '08 335i Coupe Join Date: Jan 2008 Location: New England iTrader: (11)	Can you pass state inspection without cats?
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05-10-2009, 01:12 PM	#5
flukey Go big or go home! 53 Rep 948 Posts Drives: E90 335xi Join Date: Jun 2007 Location: Iowa iTrader: (9)	I'm in Iowa... no state inspections! __________________
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05-11-2009, 01:18 PM	#6
flukey Go big or go home! 53 Rep 948 Posts Drives: E90 335xi Join Date: Jun 2007 Location: Iowa iTrader: (9)	wow... no one has a suggestion or any insight? __________________
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