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Old 03-30-2016, 06:03 PM   #11 (permalink)
California98Civic
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
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Quote:
Originally Posted by ceb302 View Post
So do you think my best bet is to get an oem manifold? I am afraid to get a used one since they crack. And does it need to be an HX specific manifold/cat or can it be a LX or DX manifold. Since this car has an aftermarket header and no cat I don't which is the original and google images doesn't help alot.

I have those 2 anti-foulers and I may try them again.
The 1996-1998 Civic FSM shows the same exhaust manifold and catalyst for the D16y5 (HX) and D16Y7 engines. The D16Y7 was more common, and could be found in the DX, CX, and LX trims. The catalyst/exahust manifold that was different was on the D16Y8 engine, which was in the EX/Si trim. Get the OEM, and get the proper O2 sensor so you don't throw a CEL which will keep you out of lean burn.

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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