Decat
10-19-2010, 10:49 AM
#21
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HONESTLY IF YOUVE BEEN AROUND CARS FOREVER ,AND BEEN MODEIFYING THEM /RACEING YOULL NEVER NOTICE .UNLESS YOUR BURNING OIL OR ON A DIFERNT TYPE OF GAS THOSE ARE THINGS YOUL SMELL.
10-19-2010, 11:29 AM
#22
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The catalyst is usually converting carbon monoxide to co2 and unburnt gasoline (hydrocarbons to co2 and water). This is only a pretty basic explanation, but you are really just releasing tons of toxins into the air or your garage when you decat. In my opinion the cat is mandatory on a street car for ethical reasons. High flow is the best option for me, but I'm not going to say you are a d*** for running a test pipe... I just never would.
From everything I've read it is a worthwhile mod. I wish it weren't and something else was for the above reasons.
From everything I've read it is a worthwhile mod. I wish it weren't and something else was for the above reasons.
10-19-2010, 12:36 PM
#23
Originally Posted by jonner,Oct 18 2010, 11:21 AM
I can bolt it in and out for the mot
Do they need a sensor to plug into the decat..??
Do they need a sensor to plug into the decat..??
The smell, its not really bad but you can smell it for sure.
10-20-2010, 02:27 AM
#24
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Originally Posted by Irvatron,Oct 19 2010, 09:36 PM
You mean for an MOT??? - I dont get you mate.
The smell, its not really bad but you can smell it for sure.
The smell, its not really bad but you can smell it for sure.
Do you need to put a sensor into the decat(not sure what for just heard some people talking about putting sensors into them)
10-22-2010, 03:37 PM
#25
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for the test pipe all you need is a spacer on the o2 sensor bung so it's plugged in but doesn't reach into the test pipe.
any cop that's been around can both hear and smell a cat delete - the level of smoke comes down to tuning, fuel and engine conditions. Older engines with lower compression readings will smoke more. Cars with other mods and no tuning will run a bit richer and smoke more as well.
the ideal setup is to run a test pipe and add a hfc cat behind it which is what I am going to do until I can afford a long tube header and tuning.
the reason is a hfc direct replacement is 275 bux, but you can buy a hfc cat that has flanges and can be added to an exhaust for 70 and up.
any cop that's been around can both hear and smell a cat delete - the level of smoke comes down to tuning, fuel and engine conditions. Older engines with lower compression readings will smoke more. Cars with other mods and no tuning will run a bit richer and smoke more as well.
the ideal setup is to run a test pipe and add a hfc cat behind it which is what I am going to do until I can afford a long tube header and tuning.
the reason is a hfc direct replacement is 275 bux, but you can buy a hfc cat that has flanges and can be added to an exhaust for 70 and up.
10-23-2010, 10:57 AM
#26
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Thread Starter
Originally Posted by Duke Togo,Oct 23 2010, 12:37 AM
for the test pipe all you need is a spacer on the o2 sensor bung so it's plugged in but doesn't reach into the test pipe.
10-24-2010, 09:58 AM
#27
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Originally Posted by EVAN&MONICA,Oct 18 2010, 12:34 AM
Ive had mine for over 2 years now and I have not encountered this yet; plus I daily drive my car year round!
10-27-2010, 11:02 AM
#29
Originally Posted by Moddiction,Oct 24 2010, 09:58 AM
I get lots of black stuff on my bumper from my test pipe..
10-27-2010, 12:04 PM
#30
A lot of the poblems with the soot is that aftermark exhausts and test pipes for some reason are about an inch shorter than oem and doesnt exit the rear bumper as far causing buildup.