Re: Do I need my cat? - Saab 900 Bulletin Board - Saabnet.com
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Catalytic converters helped solve the smog problem -- hydrocarbons that eventually fall back to the ground. Catalytic converters burn those hydrocarbons, but also convert them to lighter gasses such as CO and CO2. It has been suggested that the cat solution is extreme and contributes to increased greenhouse gasses.
Any car that required a cat when it was manufactured are required to maintain a cat. In my mind I can justify my choice to run without a cat, but I don't because it is federally mandated, and I would have to pay a fine if caught. Actually, I choose to have my cars inspected rather than run classic plates -- which in Rhode Island limits your road use.
The back-pressure affect with the original SAAB part appears to attempt to negate back-pressure with the larger diameter chamber -- that is, larger than the connecting exhaust pipes. I suggest the effects of a straight-pipe (also called a test pipe) in place of the cat are negligible. After-market cats are different. They're all different dimensions, length and diameter, and generally smaller.
It is still your choice.
Posts in this Thread:
- Do I need my cat?, Derek900, Sun, 12 Nov 2017 06:45:22
- Re: My dog says no!, Frak , Fri, 17 Nov 2017 16:16:392
- Re: Do I need my cat?, Tom G , Wed, 15 Nov 2017 20:49:04
- Re: Do I need my cat?, AaronG, Sun, 12 Nov 2017 15:39:05
- Re: Do I need my cat?, StoicBlue87 , Sun, 12 Nov 2017 07:14:08
- Re: Do I need my cat?, Saabina, Sun, 12 Nov 2017 11:15:25
- Re: Do I need my cat?, Justin VanAbrahams , Sun, 12 Nov 2017 10:01:28
- Re: Do I need my cat?, Bloodnose , Sun, 12 Nov 2017 09:38:43 <-- Viewing This Message
- OK, OK, derek900, Sun, 12 Nov 2017 10:40:25
- Re: OK, OK, Snowmobile , Sun, 12 Nov 2017 19:07:28
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