Well, I can't verify that you get any extra hp gains, but I personally experienced some torque gains. My brother had a 1990 Miata with about 60K miles on it. We punched out the cat and I could fell some increased bottom end with my "butt-meter". Grant it that my "butt-meter" is not the most accurate instrument in the world, the car before the cat was punched out would not bark the tires on a 1-2 shift at 3500 rpms, after we punched it out, it easily barked them! Some enviromental freaks will say "You are destroying the enviroment doing this" Well guess what if you cat is clogged, then you will use more gas. Also, the industries (especially in foreign countries) out there are pumping out a lot more emissions than several cars with there cats punched out.I am Technoman wrote:Knocking out your kat is not a good idea. And dos'nt get you anywere when it comes to hp gains.
Knocking out the cat
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justjuiceit
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MikeMurphy
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You obviously dont know anything about emissions so please dont offer any advice.justjuiceit wrote:Some enviromental freaks will say "You are destroying the enviroment doing this" Well guess what if you cat is clogged, then you will use more gas. Also, the industries (especially in foreign countries) out there are pumping out a lot more emissions than several cars with there cats punched out.
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justjuiceit
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Obviously you dont anything about cars! I know quite a bit about emissions working with some people at Delphi, in fact I helped build an engine that had very low emissions without a cat. Chemical, power, and other plants pump more harmful emissons than if 15% of the driving population decided to gut the cats. In the US we have regulations, but in other countries this is not regulated as heavy if at all.MikeMurphy wrote:You obviously dont know anything about emissions so please dont offer any advice.