Ok, I've got a weird issue with the LBZ in my sig. I had it idling in my garage and driveway today for a total of about 30 minutes, and I noticed an area of small ash flakes where the exhaust pipe was. These flakes are jet black, very small, and are so paper thin that they smear when you touch them. Look like smoke residue from somewhere. Is this anything to worry about? And what causes this?

BTW, it's got the mods listed in sig and I've run some pretty smokey tunes in her, with no EGR blocker (have it, but not installed). Runs like a champ and has about 44K miles on the odometer.

If I had to guess I would say its soot that was stuck in the pipe that broke free.

That's what I was hoping. Weird that it happened all at once, though, huh?

unburned fuel.

after that I assume you drove it, and it smoked more then normal for a few blocks if you got on it?

unburned fuel.

after that I assume you drove it, and it smoked more then normal for a few blocks if you got on it?

it was night time.

That's what I was hoping. Weird that it happened all at once, though, huh?

Its possible that some condensation broke it up or something.

That's your carbon footprint/garage print.

I'm thinking you are taking it way to easy on the truck. It wants you to press that pedal on the right to the floor frequently.

Yep, it sounds like soot build up and if the temps were cooler, it probably developed condensation. That's what happens in my driveway from time to time, as well.

I'm thinking you are taking it way to easy on the truck. It wants you to press that pedal on the right to the floor frequently.

Like that solution. I'll try it out:D

X10 I have it all over the wall of my garage and I'm stock

Yep, really bad sometimes with my stack, but pretty cool too!

Man, I feel alot better. Thanks guys.

I usually stick the water hose in mine when I wash it and it seems to keep my carbon footprint off of the driveway between washes.

Did some searching and just found this thread.

I just made a 1300 mi drive from Ca to KS and just now I turned the truck on in the garage and wondered all the blake snowflakes were coming from. Im assuming its from the cool humid weather?

ive got dual 5" stacks on my truck and it blows that same ash almost everytime i start it but its worse like right after it rains.