Exhaust Hiss

[Shizzam]

I just finished installing a 4" turbo back delete cat. I am hearing a hiss at the 5" tip. I don't hear it anywhere else. Is this right? Also see a little white smoke that I didn't have before. Is this because of no cat? Some help would be great.
Shizzam

[slammedSI]

The his is the VGT opening and closing, Normal, the smoke and im going out on a limb here but i think its due to not having a cat.

[stump0331]

i asked the same exact thing when i got done doin mine, its normal

sounds like a jet huh?

[06TWO50Diesel]

Everything you explain is a normal thing. the hiss, the white smoke, yep... new exhaust! Gotta love it... now go drive that plane, er I mean truck!

-nate

[npccpartsman]

Mine does it even though I'm straight-piped. Think of it like this.....if you keep on hearing that rumble your turbo ain't actuating like it should. It's also a sign that your oil pressure has come up when the rumble quits. The rumble comes back when you :burnout ........promise

[Shizzam]

Thanks alot guys, I had myself worried. I reversed the muffler, it sounds great..

[stump0331]

what do you mean you reversed the muffler?

[WOOL-PULLER]

does that mean the little cut outs inside the muffler are pointing towards the back of the truck vs catching the exhaust from the front?

[Shizzam]

You point the cones to the back so the exhaust gas isn't caught in the muffler. Almost like a straight pipe, but I didn't want to mellow of a sound.