What are the concequences with a catless dp??? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 11-29-2005, 11:31 AM   #11
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If you live in the middle of the Mojave desert, you still have to run a cat. It'* an EPA regulation and a FEDERAL law regardless of whether or not you have emissions testing locally or not.
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Old 11-29-2005, 11:34 AM   #12
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Quote:
Originally Posted by willwren
If you live in the middle of the Mojave desert, you still have to run a cat. It'* an EPA regulation and a FEDERAL law regardless of whether or not you have emissions testing locally or not.
Stop it Bill...I shipped him parts..I got the name and addy.. I need the money from turning him in

I think your performance would suffer more from the lack of pressure (BTW back pressure = torque to a certain degree) than you think.
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Old 11-29-2005, 11:34 AM   #13
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Default Re: Cat

You really don't want to be without a cat when you go for your yearly inspection, they take one look at it without a cat and won't put an inspection sticker on your car. Some states won't even re-new your registration on your car without a successfully passed emissions test, or a valid inspection sticker.
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Old 11-29-2005, 11:35 AM   #14
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Quote:
Originally Posted by willwren
If you live in the middle of the Mojave desert, you still have to run a cat. It'* an EPA regulation and a FEDERAL law regardless of whether or not you have emissions testing locally or not.
its not illegal if you dont get caught.
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Old 11-29-2005, 11:36 AM   #15
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Default Re: Cat

Quote:
Originally Posted by jessie_harbin
You really don't want to be without a cat when you go for your yearly inspection, they take one look at it without a cat and won't put an inspection sticker on your car. Some states won't even re-new your registration on your car without a successfully passed emissions test, or a valid inspection sticker.
indiana= no emmissions excpet for gary.
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Old 11-29-2005, 11:36 AM   #16
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Quote:
Originally Posted by ELMACHOGERACHO
Quote:
Originally Posted by willwren
If you live in the middle of the Mojave desert, you still have to run a cat. It'* an EPA regulation and a FEDERAL law regardless of whether or not you have emissions testing locally or not.
its not illegal if you dont get caught.
You will get caught. How much do you think the fine will be if the REWARD is $250?

Besides being illegal (whether you get caught or not) it'* irresponsible and bad for your car and everyone around you.
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Old 11-29-2005, 11:37 AM   #17
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Default Re: What are the concequences with a catless dp???

Jess...see bold. Some states don't test or look.

Quote:
Originally Posted by ELMACHOGERACHO
im going to be swapping an L67 into my 97 se and i have pems and exhaust already and i want to get a down pipe. i heard that high flow cats clog up easy, so i was going to go with a catless dp. (no emmissions testin). what problems would this cause? i have heard conflicting reports. i have heard that no cat and an o2 simulator will effect performance, but my teacher for fuel systems said that the rear o2 only checks to see if the cat'* working properly. will the only problem be the code for no rear o2? if so, cant i get that deleted with a pcm? any info is greatly appreciated.
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Old 11-29-2005, 11:42 AM   #18
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Default Re: Cat

All I'm saying is be very carefull. Especially if you plan to travel out of state after you modify your exhaust system. Some judges may throw out a ticket if you get one out of state, but some can be real ******** about it. The cops like to title the reasoning on the ticket as "noise violation" or "unsafe vehicle equipment"
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Old 11-29-2005, 11:45 AM   #19
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Besides being illegal (whether you get caught or not) it'* irresponsible and bad for your car and everyone around you.
so is speeding, but that doesnt stop us from doing that.
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Old 11-29-2005, 11:50 AM   #20
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Why would you want to suffer performance and backpressure problems not to have it. I mean, you said you wanted a DP, but what do you think is going to improve with the cat deleted from the setup, mind you Im asking a performance question, cause without the cat, your exhaust will sound shotty and ugly.
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