cat or no cat? pros and cons
03-23-2012, 05:21 AM
#26
Crazy Honda Guy
Re: cat or no cat? pros and cons
03-23-2012, 08:43 AM
#29
Crazy Honda Guy
03-23-2012, 09:53 AM
#30
Re: cat or no cat? pros and cons
I would just run a cat, your not going to see much if anything.. Plus if you get caught w/o the cat your car can be crushed if someone feels like making you a example and no you cant take anything off the car or get anything from the inside. Just something to think about in the oh so great state of Cali.
03-23-2012, 01:24 PM
#31
Honda-Tech Member
Re: cat or no cat? pros and cons
I'm glad I stumbled across this thread. I'm building an LSVtec, all motor. I've been thinking about getting a test pipe, but was worried about the sound so then I was probably going to get a new exhaust system. Definitely NOT doing that now, and I'll probably look into getting a high flow cat, at least that seems the cheaper way to go too. Or I'll use the o.g. one on my 99 Si with 160k until it's done!
03-23-2012, 09:12 PM
#34
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Re: cat or no cat? pros and cons
Thank you.
This thread is so full of misinformation and poorly articulated points that are wrong.
Bottom line:
___________________
Removing your catalytic converter increases the harmful emissions from the car.
Removing the catalytic converter increases the noise/raspiness of the exhaust note.
Removing your catalytic converter is not a worthwhile power upgrade. Often times a catalytic converter can optimize flow velocity and result in better low end power while sacrificing a minimal flow rate at the top of the RPM band.
Dynos have again and again proven that a catalytic converter is not this obstructive power killer of car performance. Get a 300 cell high flow catalytic converter, and make power where it makes sense to and leave your exhaust alone.
Save the environment, save our ears, save your image.
Run a catalytic converter unless you're running open header at a drag strip.
This thread is so full of misinformation and poorly articulated points that are wrong.
Bottom line:
___________________
Removing your catalytic converter increases the harmful emissions from the car.
Removing the catalytic converter increases the noise/raspiness of the exhaust note.
Removing your catalytic converter is not a worthwhile power upgrade. Often times a catalytic converter can optimize flow velocity and result in better low end power while sacrificing a minimal flow rate at the top of the RPM band.
Dynos have again and again proven that a catalytic converter is not this obstructive power killer of car performance. Get a 300 cell high flow catalytic converter, and make power where it makes sense to and leave your exhaust alone.
Save the environment, save our ears, save your image.
Run a catalytic converter unless you're running open header at a drag strip.
I might still get it though because it seems like a good reasonable price
only problem is it doesn't come with the flanges so I would have to take it to a shop to get them welded on which I will find out the prices for soon
03-24-2012, 07:40 PM
#39
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Re: cat or no cat? pros and cons
does anyone know a good high flow cat that is state legal in cali?
the 300 cell high flow cat caught my attention after referred by Libertariat but the cat is not legal in cali so im looking for other alternatives
magna flow is looking too over priced
the 300 cell high flow cat caught my attention after referred by Libertariat but the cat is not legal in cali so im looking for other alternatives
magna flow is looking too over priced
03-24-2012, 08:06 PM
#40
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Re: cat or no cat? pros and cons
vibrant and magnaflow both make very good catalytic converters for ~$100.
The idea of even asking a shop to "make" you a test pipe is a ridiculous notion. Order a cat and have ot 2 day shipped.
The idea of even asking a shop to "make" you a test pipe is a ridiculous notion. Order a cat and have ot 2 day shipped.
03-25-2012, 05:31 PM
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Re: cat or no cat? pros and cons
I cant find a ca legal cat for under 150
so im getting a 300 cell high flow catalyctic converter even if its not state legal
figured theres no point to paying extra to get a legal cat when im running a jdm engine lol
so im getting a 300 cell high flow catalyctic converter even if its not state legal
figured theres no point to paying extra to get a legal cat when im running a jdm engine lol
03-25-2012, 05:35 PM
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Re: cat or no cat? pros and cons
im only going to get a cat over a test pipe because of the better sound from the exhaust
03-28-2012, 09:25 PM
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Re: cat or no cat? pros and cons
item description
This new high flow catalytic converter from MagnaFlow is perfect for situations where space is tight, and it contains a metallic substrate for optimum CFM flow and maximum durability (almost as good a flow rate as using no cat at all). You won't believe the power difference you'll get from installing this converter.
This new high flow catalytic converter from MagnaFlow is perfect for situations where space is tight, and it contains a metallic substrate for optimum CFM flow and maximum durability (almost as good a flow rate as using no cat at all). You won't believe the power difference you'll get from installing this converter.
03-28-2012, 10:15 PM
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Re: cat or no cat? pros and cons
I also have an em1 and have a bolt on skunk2 test pipe.. definitely helps with airflow.
I live in FL so emission tests aren't required.
Gave me an extra 4whp on the dyno so i didn't complain.
I live in FL so emission tests aren't required.
Gave me an extra 4whp on the dyno so i didn't complain.
03-29-2012, 02:16 AM
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Re: cat or no cat? pros and cons
Newer high flow cats should make the care more fuel efficient, cleaner exhaust, and low end power.
03-29-2012, 02:56 AM
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Re: cat or no cat? pros and cons
Unless you're running a track only car on a professional circuit, you should have a cat. If you're really that worried about the 2whp you'll get from running without a cat, you can tune your ignition timing for FREE. On the street, that 2WHP means about as much as pissing in a swimming pool. You'll get a warm fuzzy feeling, but no one else will notice. Also, unless you're a professional racer, you'll see more gains from advanced driving courses than you will from not having a cat.
There are hundreds of different driving academies out there that will teach you to become a better driver. For those of you on the west coast, I would highly recommend the Lotus Driving School in Nevada. Lotuses are small, light, powerful cars, and are what all of us Civic people wish our car could be. There are probably only two people on this forum that wouldn't have anything more to learn from the Lotus Driving School. ****, I completed it a couple years ago, and I'd still love to go back for a refresher.
Stop worrying about the power from not having a cat. It means absolutely nothing to any of you.
There are hundreds of different driving academies out there that will teach you to become a better driver. For those of you on the west coast, I would highly recommend the Lotus Driving School in Nevada. Lotuses are small, light, powerful cars, and are what all of us Civic people wish our car could be. There are probably only two people on this forum that wouldn't have anything more to learn from the Lotus Driving School. ****, I completed it a couple years ago, and I'd still love to go back for a refresher.
Stop worrying about the power from not having a cat. It means absolutely nothing to any of you.
