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Posted by Mikey P (93 SE) on June 14, 2002 at 07:37:07:
In Reply to: better mileage posted by Brian Christie on June 14, 2002 at 07:24:13:
How did you remove your cats? If you gutted the existing cat (or cats) then that is usually bad. Depending on how you do it, it can create a weird turbulance. This will result in a drop in velocity and resulting drop in power. If you put in a straight length of pipe then you don't loose anything and you may gain 1 or 2 HP, but you will have significantly higher emissions and you will be adding to the shitty air quality in this country. Just get a high flow cat for around $100 to minimize the restriction and you will still be able to sleep at night because you won't have guilt waking you up with the cold sweats. If removing the cat gave you significant power then perhaps your cat was clogged? The intake would be just as good on a maxima as your car for the most part. Are you looking at getting a maxima?