How many of you guys are running your kits with no cat? I'm planning on running straight from downpipe to muffler, and use an o2 sim since I'm obd2. Just wondering if there are any negatives to this.

 

perfectly fine providing you dont live in cali..
heh

 

No kitty kats here. Just 2 1/4 of restriction all the way back
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Any smoking/Nasty smell?

 

2 1/4 here without a cat.
Mine smells like complete ---- at times.

 

I don't get any smoke, but sometimes the exhaust smells like chronic. Seriously, I have pulled up to friends houses and they would be like "Oh my god your car smells like kind bud!!". It really does. I thought someone planted some stuff in my car or something. Really strange....
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Cant complain with that smell.

 

i cant tell the diff..

 

i started to get nausea after a few weeks with no cat n/a. hopefully a 3" carsound wont be that restrictive

 

will the car run faster when cat-less?

thanks,
chris