the smell dont bother me too much, i actually like it lol

 

I had a k5 also and i know what you mean with the odor when the windows are down. My 2003 has a tune and on cats and i havent notice if it did so if it does its not as much.

 

when the motors cold you can really smell it but when its warmed up and runnig for a little while you can bearly smell it

 

I have a truck with and one without...it's noticable but nothing crazy IMO.

 

No smell with mine, even with the cutout open.

 

Mine only smells on start-up. Once it's running it doesn't smell at all.

 

Mine has a very distinct smell right now....


... might have something to do with the 3/4 tank of 110LL AVGAS?


lol, it was a accident putting it in... lol

 

I have ran 104 octane Racing Unleaded in my truck with cats. No issues and it smelled great.

Running race fuel in an engine wont cause it to blow up. It may run bad, but racing fuel doesnt all of a sudden majke your engine make more power. Teh only fuel to do that is if you add nitromethane.
Even nitrous oxide wont burn on its own.

When I had no cats, it was very smelly, cats on and no smell.

You guys who arent running cats, try running your trucks in a shop, I guarentee it stinks morethan with no cats.


peace
Hog

 

Mine doesnt have cats and I didnt notice any smell.

Yea I put ~3 gallons of 110 in with about 10 gallons of 93 when i went to the dragstrip.

 

Definatley a smell difference when I took the cats off, when I ran the corn fuel E85 it had a weird smell, you can definatley smell race fuel if you run it with no cats.