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Old 04-27-2010, 05:19 PM   #59 (permalink)
Wonderboy
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Join Date: Jun 2008
Location: Chicago
Posts: 674

The Fruit Bat - '01 Honda Insight
Last 3: 54.26 mpg (US)

Current - '21 Subaru Impreza Wagon
90 day: 34.36 mpg (US)
Thanks: 40
Thanked 39 Times in 27 Posts
Thanks Chris,

The cat I have is from a CRX, and it actually looks like a stock one (long slender style vs. universal looking short and fat). A curved downpipe would extend from the manifold, head down and curve rearward, then termiante at a flange. That flange is where my cat would be if I were not to move it, but I don't think I've got much choice in the matter since I'm sure as hell not going to go buy a new cat if I don't need one. This is why I ask where I should place the o2 sensor (if there is indeed one at all): High up near the manifold, or back just before the cat.

Quote:
The Honda's catalytic converter should be OK for the 3 cylinder engine, so long as it has the same inputs (AIR, etc..).
What do you mean by this?
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