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Originally Posted by usdmsilvia
With the s14 Nissan included the cat in the usdm downpipe to comply with stricter emissions laws in the US (California). Locating the cat closer to the motor allows the cat to heat up quicker and reduce emissions.
In Japan (and the rest of the world) the emissions laws are not as strict so the downpipe does not have a cat. Instead, the cat is located where the hollow usdm one is.
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Makes sense. I wish most here would only post on things they *REALLY* know about.
I haven't opened mine, but knocking on it...it's hollow as far as I know. Everywhere else seems to back up that.
Never knew why they'd put a part in that did nothing and changed the car so much...but the overseas version makes it clear.
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Now my Kensai, I curse you to be a Ronin and with the my remaining spirit I, beseech Chimata-No-Kami, to have you wander through time and distance lands, seeking a new master.
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