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Thread: 95-97 cat vs. 98-99 cat comparison pics

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Posts: 1-6 of 6
2007-12-16 00:47:50
#1
95-97 cat vs. 98-99 cat comparison pics
I’ve seen a few questions about the bigger cats in the 98-99 200sx and Sentra SE(L). I had the two side by side and took the opportunity to measure and snap a few pics.





The 95-97 cat is 12 and 5/16 inches and the 98-99 is 13 and 3/4 inches. That’s a difference of 1 and 7/16 inches. If you’re putting an exhaust from a 95-97 on a 98-99 it needs to be shortened ~1.5 inches. If you’re using an exhaust from 98-99 on a 95-97 it needs to be lengthened ~1.5 inches. I just thought I’d clear that up for everyone.

When I swapped an exhaust from my Sentra over to my 200sx. I opted to just use the 98 cat, which worked like a charm. If you go this route, you’ll need a “skinny” O2 sensor adapter. The 95-97 use a skinny O2, the 98-99 use a fat O2. I happened to have an adapter laying around so it all worked out pretty well.
2007-12-16 03:35:41
#2
Thanks for the info Swiss!

Now I need to get my hands on a new 99 O2 sensor, seems like mine might be falling apart soon
2007-12-16 05:00:31
#3
you should post this in the tech how to!

Actually, I will move this to the tech how to! Good info, I just went through this myself actually. Put a VRS exhaust on my 99 SEL and luckily had a old cat from my B13 to drop in while waiting for my test pipe cause the stock cat was to long.

Brent
2008-11-12 17:20:09
#4
Nice I have been looking for something like this.
Where should I make the cut on this thing? http://i182.photobucket.com/albums/x295/ih8suvz/11a143138ZZZZZZZZZ8av976c4e929a7b1a.jpg
2008-11-15 01:08:11
#5
Does anyone know if the Greddy sp1 was only made for the 200sx? I have one on an se-l uncut and the fitment is fine..

2009-02-10 04:43:06
#6
^^ The tip is not supposed to stick out that much, it's supposed to be hidden a bit more. My muffler was sitting on the bumper and ate the plastic away
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