Ok well the other day me and my friends were installing like 20 system in my within 3 months and i had left the car on, we went around back to hook everything uyp and after just a couple minutes we were all just about to pass out from the smell



i have noooo idea what it is, i know also that i have a small gasket leak closer to my header but a very noticible smell



never like before



so anybody know what this vould be/???

my car has never smelled like this

um exhaust maybe? and what the hell is a 20 system, try using a comma or period once in a while.

I have no idea what that 1st paragraph said?

and i got no idea what the hell you just said looks like were all screwed! https://www.nopistons.com/forums/pub..._DIR#>/dry.png

that's the exhaust of a 13B with peripheral port exhaust, without smog equipment, idling.

yes that what it does when you take the cats off



mike

i've got no cats, but it smells better than it did with them.

well, your case might be an exception, but technically speaking... the peripheral port exhaust port has alot of intake/exhaust overlap, at low rpm theres a significant period of time for the air/fuel mixture to go right out the exhaust port. When you have the emissions equipment it cleans this up. At idle, with no cats, shitloads of unburned hydrocarbons are going right out the tail pipe(s).



wether your car smells better now without cats than before is relatively insignificant since we do not know what condition your cats were in, or if your emissions system was functioning properly.

ok my bad people

i was saying i was installing the 20th sound system within a couple months...... and to my surprize it is an extra smell

and yes i know when i take my cats off there is a smell and i have had them off for more than a year now



but recently this smell has been a lot heavier

and i guess im going to double check whats goin on under there but.....



do you guys think it could be some kind of leak???

i was putting another driveshaft in when i looked at my extra muffler under the car and there was something on it, i thought it was oil but my mech told me it wasnt and it was all dried up though........

any thoughts?

maybe a plastic bag in the exaust burning off