dsmith Posted May 12, 2005 Share Posted May 12, 2005 To those of you that are running a full turboback CATLESS exhaust: how bad is the smell? Do you get a lot of exhaust smell when you drive with your windows down/moonroof open? Ideally, I'd like to hear from someone with a Perrin DP and catback. Anyone? Thanks, Doug Link to comment Share on other sites More sharing options...
Xenonk Posted May 13, 2005 Share Posted May 13, 2005 what I remember from the WRXs, it's not bad at all when you are moving.. sitting at a light with backdraft is where it gets you.. you can always retune the car with a UTEC to lean it out a bit.. but I love the smell of a rich running engine so it doesnt bother me a bit. Keefe Keefe Link to comment Share on other sites More sharing options...
sandwood Posted May 13, 2005 Share Posted May 13, 2005 keefe, aka "I love the smell of napalm in the morning" getting out of the legacy game Link to comment Share on other sites More sharing options...
lisn2me2 Posted May 13, 2005 Share Posted May 13, 2005 definitely reeks at a stand still not even noticable when driving perrin DP Link to comment Share on other sites More sharing options...
dolesun Posted May 13, 2005 Share Posted May 13, 2005 Your killing the ozone! Hahaa.... Link to comment Share on other sites More sharing options...
LandShark Posted May 13, 2005 Share Posted May 13, 2005 only really noticable in a confined space, like idling in your garage. never notice it inside the car. the thing that bugs me the most is all the black soot. the exhaust tips blacken up in a couple of days after you clean them. and a buddy of mine who has rode behind me says the exhaust always burps black smoke when I really get on it. probably because the Cobb AP stage 2 map runs fuel rich. Link to comment Share on other sites More sharing options...
TSiWRX Posted May 13, 2005 Share Posted May 13, 2005 No experience on any Scoobys with such a mod. Extensive seat-time with DSMs with such mods, though - nothing when car's moving moderately. Whether or not that distinctive smell is noticeable when sitting still while outdoors seem to depend on ambient conditions, including just sheer luck. The only time the smell truly came out was when the driver really put their foot down on the happy pedal. -A <-- I love Winky, my "periwinkle" (ABP) LGT! - Allen / Usual Suspect "DumboRAT" / One of the Three Stooges '16 Outback, '16 WRX, 7th Subaru Family Link to comment Share on other sites More sharing options...
dbwillis Posted May 13, 2005 Share Posted May 13, 2005 I do notice the smell at low speeds, esp idle @ stop lights and traffic. (wife really hates it, but not me) Perrin DPPerrin UP Link to comment Share on other sites More sharing options...
MDTURBO Posted May 13, 2005 Share Posted May 13, 2005 I love huffing gas, what's the problem? 2012 Forester XT. Stage 2+ Retired from Racing. I used to build FMIC and more. Link to comment Share on other sites More sharing options...
eVoMotion Posted May 13, 2005 Share Posted May 13, 2005 Are there any issues passing emissions if you have catless and black smoke/smell at idle; i.e. especially when you go to get tested. Link to comment Share on other sites More sharing options...
driggity Posted May 13, 2005 Share Posted May 13, 2005 Are there any issues passing emissions if you have catless and black smoke/smell at idle; i.e. especially when you go to get tested. Depends on how emissions testing is done in your area. In Portland its ODB-II testing so they don't run any sniffer tests. I'm pretty sure that some of the WRX guys down there have passed emissions with no problems because there weren't any ODB-II codes from their computer. And once your car is warmed up you really shouldn't be kicking out black smoke at idle even if you are catless. Plus its not that hard to throw the stock downpipe on the car for emissions testing if you really need to. Link to comment Share on other sites More sharing options...
Boostjunkie Posted May 13, 2005 Share Posted May 13, 2005 Are there any issues passing emissions if you have catless and black smoke/smell at idle; i.e. especially when you go to get tested. Not a snowball's chance in hell of passing, in a state with a sniffer test. You will also fail in some other states which perform a visual inspection. Link to comment Share on other sites More sharing options...
eVoMotion Posted May 13, 2005 Share Posted May 13, 2005 Love that I am in Portland and I now know its ODB-II testing Link to comment Share on other sites More sharing options...
ProConcept Posted May 13, 2005 Share Posted May 13, 2005 Emissions? What emissions? Im so glad I live in WI, they can give a shit less if your cars running a cat or not. No emissions testing that I know of at all. Link to comment Share on other sites More sharing options...
Tronix Posted May 13, 2005 Share Posted May 13, 2005 Well, I will be running catless after next saturday. I have a full straight through catback (magnaflow) and a Lachute catless DP and a DC Sports catless uppipe.. I will also be upgrading to a stage 2 map, so i'll have more feedback for you then. hmm so maybe I should have spent the extra $100 and gotten the catted DP from Lachute? sounds like my car is REALLY gonna stink eh? -Tronix(peee you)GT for more pics and info... http://angevine.org/legacy/legacy.html Link to comment Share on other sites More sharing options...
KTM 525 Posted May 13, 2005 Share Posted May 13, 2005 the thing that bugs me the most is all the black soot. the exhaust tips blacken up in a couple of days after you clean them. . My car is stock and the same thing happens. Link to comment Share on other sites More sharing options...
LandShark Posted May 13, 2005 Share Posted May 13, 2005 Yeah, I know. Mine did it too when stock. But now the amount is five times worse. Not happy about the little puffs of black smoke on acceleration. Planning to change to either Cobb catted DP (whenever that comes out) or Stromung catted DP (whenever that comes out). Link to comment Share on other sites More sharing options...
KTM 525 Posted May 14, 2005 Share Posted May 14, 2005 I was told going catless will effect spoolup. Is this true even with the tiny VF40 we have? Link to comment Share on other sites More sharing options...
Boostjunkie Posted May 21, 2005 Share Posted May 21, 2005 I've heard stories of people passing sniffer tests while running catless, and I'm sure they are true, but definately the exception, not the norm. I think that emissions standards change according to model year, so older cars would stand a far better chance of passing as opposed to newer cars. That probably explains how your MR2 passed. I just cannot see how a catless car that is supposed to meet 2005 emissions standards could pass without a cat. Link to comment Share on other sites More sharing options...
robust Posted May 22, 2005 Share Posted May 22, 2005 besides NOx, the cat's purpose is to break down carbon monoxide and unburnt fuel (hydrocarbons) which result from incomplete combustion. so the cat isnt doing a considerable amount if the engine is running close to stoich. or so i've gleaned. for us californians... there's a visual inspection (so that hampers things), but unlike the MR-2, alot of places dont have double roller dynos (for awd) so they just hit the gas a bit in neutral which produces less emissions than when under load. Link to comment Share on other sites More sharing options...
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