Anyone regret going catless?

paradocs98 · 10-29-2012, 01:03 PM

I know there's quite a bit of discussion on here about the power gains and increased sound of a primary cat delete, but has anyone gone this route with their daily driver and later regretted it due to the smell/fumes?

For various reasons I would want to do the Dinan midpipe and software. Phil/M Ryder has given me his endorsement for this setup. I'd like to take advantage of the 15% off promotion running through the end of the month at Dinan. Just looking for further comments.

Thanks in advance.

kchu221 · 10-29-2012, 01:09 PM

one of the main reason going catless is for the power, but the only down side of the going catless is the smell, and not being able to pass smog... i think its all personal preference, me i personally love the smell of catless exhaust, i know im weird...

C|3R1C · 10-29-2012, 01:52 PM

Quote:

Originally Posted by kchu221

one of the main reason going catless is for the power, but the only down side of the going catless is the smell, and not being able to pass smog... i think its all personal preference, me i personally love the smell of catless exhaust, i know im weird...

Yea you're like my friend lol. He likes the smell. Personally I like HFC smell lol!

To OP: no regrets going catless. I've had people I know complain about the smell, but I personally don't mind it at all and barely smell it as it is when I'm driving, unless I'm at a stop light with the windows down, and a light wind is blowing from back to front. In that case, I just roll up the windows till I start moving.

aus · 10-29-2012, 01:58 PM

I have the Akra EVO with 100cpi cats and think it stinks more than I want. I definitely get nervous when there's a cop behind me at a stoplight, especially if it's a motorcycle cop- that start/stop BETTER shut the car down at that time!!

I'm not convinced there's a huge difference in power if you have the secondary cats in place. Evolve did measurements and didn't fine that much of a difference between catless and 200cpi cats in the secondary position.

This would mean the Turner Test pipes would be the way to go from a performance and price point.

.

paradocs98 · 10-31-2012, 02:04 PM

Quote:

Originally Posted by kchu221

one of the main reason going catless is for the power, but the only down side of the going catless is the smell, and not being able to pass smog... i think its all personal preference, me i personally love the smell of catless exhaust, i know im weird...

Quote:

Originally Posted by C|3R1C

Yea you're like my friend lol. He likes the smell. Personally I like HFC smell lol!

To OP: no regrets going catless. I've had people I know complain about the smell, but I personally don't mind it at all and barely smell it as it is when I'm driving, unless I'm at a stop light with the windows down, and a light wind is blowing from back to front. In that case, I just roll up the windows till I start moving.

Thanks for the comments. The smell at stoplights--is it so bad that you sit there hoping the light will turn green so you can get away from it? My installer warns me that when he has M3s in his shop with the midpipe, he can't let them idle at all or it makes his "eyes water"...

Longboarder · 10-31-2012, 03:45 PM

No regrets....but I love the smell of napalm in the morning

info@trinityautosport · 10-31-2012, 03:47 PM

no regrets at all here =)

ilya335 · 10-31-2012, 03:49 PM

I hate driving behind my friend's M3 that has no cats... gives me a headache.

VCMpower · 10-31-2012, 03:49 PM

Nope.

schnell325 · 10-31-2012, 03:53 PM

Quote:

Originally Posted by Longboarder

No regrets....but I love the smell of napalm in the morning

dtmwerksm3 · 10-31-2012, 04:34 PM

No regrets, love the sound and the massive power gains of course

kchu221 · 10-31-2012, 07:19 PM

Quote:

Originally Posted by paradocs98

Thanks for the comments. The smell at stoplights--is it so bad that you sit there hoping the light will turn green so you can get away from it? My installer warns me that when he has M3s in his shop with the midpipe, he can't let them idle at all or it makes his "eyes water"...

haha hell no! i love the smell!

///M Ryder · 10-31-2012, 07:24 PM

I don't even smell it anymore. After some driving time you'll be so used to the smell you'll forget all about it. Do it man before the sale is over.....you won't regret it. Just play the video I sent you..................Phil

MStar · 10-31-2012, 07:36 PM

Been catless on several cars..im done with that..yeah you may adjust to the smell, but I guarantee your passengers wont..the fumes are embarrasing (first question you'll get from a girl, "why does your car smell like that? ewwhh")

Not to mention poisonous..I used to get headaches all the time and the smell on my clothes..meh..

Takes a classy car and cheapens it imo

MStar · 10-31-2012, 08:05 PM

Quote:

Originally Posted by Team Plutonium

Does it hurt your vagina too?

Nice...so real men inhale noxious fumes?...-smh-

schnell325 · 10-31-2012, 10:58 PM

Quote:

Originally Posted by MStar

Nice...so real men inhale noxious fumes?...-smh-

Only after a hell of a lot of beer!!!

aus · 10-31-2012, 11:48 PM

How much improvement will one get running catless vs.200cpi int he secondary position?
Evolve said hardly any improvement.

.

dogbone · 11-01-2012, 07:52 AM

Can anyone comment on the smell difference between a completely stock exhaust system, and a stock exhaust system with just the primary cat removed while still leaving everything else in place?

surlynkid · 11-01-2012, 09:05 AM

Quote:

Originally Posted by MStar

(first question you'll get from a girl, "why does your car smell like that? ewwhh")

try dating women instead of girls.

rjd598 · 11-01-2012, 09:53 AM

Quote:

Originally Posted by Team Plutonium

Does it hurt your vagina too?

Wolfinwolfsclothing · 11-01-2012, 10:24 AM

Dont regret it all all. Sound and power are far too good to pass up. My only caveat would be having the set of resonators...I like that I have a set and wouldnt not want ot have them.

RBB · 11-01-2012, 10:46 AM

No regrets dumping the primary cats here. I've got 200 cel HFC's and I briefly get a smell on startup which quickly dissipates. If you're worried about it get an x pipe with HFC's.

10-29-2012, 01:03 PM	#1
paradocs98 Lieutenant Colonel 394 Rep 1,519 Posts Drives: M2C Join Date: May 2009 Location: NY iTrader: (0)	Anyone regret going catless? I know there's quite a bit of discussion on here about the power gains and increased sound of a primary cat delete, but has anyone gone this route with their daily driver and later regretted it due to the smell/fumes? For various reasons I would want to do the Dinan midpipe and software. Phil/M Ryder has given me his endorsement for this setup. I'd like to take advantage of the 15% off promotion running through the end of the month at Dinan. Just looking for further comments. Thanks in advance. __________________ Past: E46 330Ci, E60 545i, E60 M5, E90 M3 Present: 2020 M2 Competition, 2022 GT3
	Appreciate 0 Tweet Quote

10-29-2012, 01:09 PM	#2
kchu221 JDM whore 188 Rep 3,341 Posts Drives: 2009 997.1 Turbo Join Date: Jan 2012 Location: los angeles iTrader: (11)	one of the main reason going catless is for the power, but the only down side of the going catless is the smell, and not being able to pass smog... i think its all personal preference, me i personally love the smell of catless exhaust, i know im weird... __________________ 2013 Lamborghini Gallardo LP550-2
	Appreciate 0 Quote

10-29-2012, 01:58 PM	#4
aus Major General 890 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	I have the Akra EVO with 100cpi cats and think it stinks more than I want. I definitely get nervous when there's a cop behind me at a stoplight, especially if it's a motorcycle cop- that start/stop BETTER shut the car down at that time!! I'm not convinced there's a huge difference in power if you have the secondary cats in place. Evolve did measurements and didn't fine that much of a difference between catless and 200cpi cats in the secondary position. This would mean the Turner Test pipes would be the way to go from a performance and price point. . __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
	Appreciate 0 Quote

10-31-2012, 03:45 PM	#6
Longboarder Major General 3430 Rep 6,771 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	No regrets....but I love the smell of napalm in the morning __________________ Current BMWs: 2022 X5 40i, 2016 X5 50i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
	Appreciate 0 Quote

10-31-2012, 03:47 PM	#7
info@trinityautosport 281 Rep 7,518 Posts Drives: F13 M6 Join Date: Apr 2012 Location: Anaheim, CA iTrader: (0)	no regrets at all here =)
	Appreciate 0 Quote

10-31-2012, 03:49 PM	#8
ilya335 Second Lieutenant 180 Rep 282 Posts Drives: BMWs Join Date: Apr 2011 Location: West L.A. iTrader: (0)	I hate driving behind my friend's M3 that has no cats... gives me a headache.
	Appreciate 0 Quote

10-31-2012, 03:49 PM	#9
VCMpower Banned 25 Rep 873 Posts Drives: 2010 Dakar, 2013 Fire Orange Join Date: Jan 2010 Location: Victoria B.C. iTrader: (0)	Nope.
	Appreciate 0 Quote

10-31-2012, 04:34 PM	#11
dtmwerksm3 Lieutenant 80 Rep 555 Posts Drives: 15 M4 Mineral White/Shakir Join Date: Oct 2011 Location: San Diego, CA iTrader: (0)	No regrets, love the sound and the massive power gains of course __________________ 2015 BMW M4— Mineral White on Sakhir Orange/Black DCT 2012 BMW S1000RR — Racing Red/Alpine White - Sold 2009 BMW M3 Coupe — Alpine White on Fox Red, DCT - Sold 2003 BMW M3 — Carbon Black on Black, 6MT - Sold 1995 BMW M3 Coupe — Cosmos Black on Black - Sold
	Appreciate 0 Quote

10-31-2012, 07:24 PM	#13
///M Ryder Grown Azz Man 429 Rep 3,021 Posts Drives: GT4 Join Date: Dec 2010 Location: Texas iTrader: (8)	I don't even smell it anymore. After some driving time you'll be so used to the smell you'll forget all about it. Do it man before the sale is over.....you won't regret it. Just play the video I sent you..................Phil __________________ 2016 GT4.....Sapphire Blue Metallic, Platinum stitch Leather/Alcantara interior, Carbon Fiber Trim, PCM w/Nav, Guards Red Belts, 2 Zone Climate, Sport Chrono, LWB, Smokers Pack, Big Gas Tank, Light Design Pack, Bi-Xenon w/PDL, Auto Dim Mirror, Clear Side Markers, GTS Clear Taillights
	Appreciate 0 Quote

10-31-2012, 07:36 PM	#14
MStar Banned 6 Rep 290 Posts Drives: e92 M3 Join Date: Oct 2012 Location: Here and there iTrader: (0)	Been catless on several cars..im done with that..yeah you may adjust to the smell, but I guarantee your passengers wont..the fumes are embarrasing (first question you'll get from a girl, "why does your car smell like that? ewwhh") Not to mention poisonous..I used to get headaches all the time and the smell on my clothes..meh.. Takes a classy car and cheapens it imo
	Appreciate 0 Quote

10-31-2012, 11:48 PM	#17
aus Major General 890 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	How much improvement will one get running catless vs.200cpi int he secondary position? Evolve said hardly any improvement. . __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
	Appreciate 0 Quote

11-01-2012, 07:52 AM	#18
dogbone Colonel 5350 Rep 2,805 Posts Drives: '09 E90 M3 - IB Join Date: Feb 2012 Location: 93 million miles from the Sun iTrader: (1) Garage List 2009 BMW E92 M3 [0.00] 2009 BMW E90 M3 [0.00]	Can anyone comment on the smell difference between a completely stock exhaust system, and a stock exhaust system with just the primary cat removed while still leaving everything else in place?
	Appreciate 0 Quote

11-01-2012, 10:24 AM	#21
Wolfinwolfsclothing Banned 37 Rep 1,312 Posts Drives: E92 ///M3 Coupe Join Date: Sep 2012 Location: B-roads iTrader: (2)	Dont regret it all all. Sound and power are far too good to pass up. My only caveat would be having the set of resonators...I like that I have a set and wouldnt not want ot have them.
	Appreciate 0 Quote

11-01-2012, 10:46 AM	#22
RBB First Lieutenant 22 Rep 344 Posts Drives: E92 M3 Join Date: Mar 2012 Location: NOVA iTrader: (11)	No regrets dumping the primary cats here. I've got 200 cel HFC's and I briefly get a smell on startup which quickly dissipates. If you're worried about it get an x pipe with HFC's.
	Appreciate 0 Quote