If I dump my exhaust, is their any chance at all over the years of the exhaust fume rotting out the bed.

 

nope. i seriously wouldn't worry about that. The worse thing that could happen is have that exhaust smell in the cab of the truck, but you should be fine where our mufflers are placed way back behind the cab

 

Nope it wont rot the bed out, its a win/win for ya, the clean look without tips, & the increased sound

 

increased is right.

 

Nope, no worries, go for it!

 

will the escaping exhaust leave black marks on the body>?

 

not at all

 

Ok, dumb question coming. What is "dumping" your exhaust? I recently got a Flowmaster 40 in a trade so yesterday I called a local shop and asked if they would put it on. They said it would be no problem and he asked if I wanted it dumped or with tips. What's the difference and is there any performance/sound issue with one or the other?

 

I believe they are referring to not putting on a tail pipe and just “dumping” the exhaust directly after the muffler. I doubt there is much difference in performance either way. As previously mentioned you may get some fumes in the cab if you are not moving.

 

Should be no problems but in my opinion the noise by doing that is not a clean sound. I would go with another muffler or exhaust pipes.

 

trussell is right about the definition of dumping. i have my exhaust dumped on my 2000 5.4L. whether there is a noticeable difference in performance is hard to determine. i have heard a theory, that if you run a smaller size pipe after the muffler, this will create some backpressure on the exhaust system and create more power. i am not a believer of this theory. i tried this on my 56 chevy, first i ran full length with tips. then swapped over to a dumped system. no noticeable difference in performance, just a better sound in my opinion

 

I have always loved the DEEP throat of a dumped exhaust. I will be doing that to mine.

 

Less restriction (bigger/less pipes) are better for high rpms. More restriction (smaller/more pipes and/or more bends) is better at lower rpms. There is a balance point, on a mid-size V8 (5.4l) the Y-pipe from the factory is a fair compromise. Once you are past the cat, 3" pipes won't scavenge as well at low rpms, you could see some low end power loss or slight reduction in mpg. Probably dyno noticeably but not seat of the pants.

Dumping behind the muffler probably has almost no affect on power or mileage, but will increase in cab noise and probably won't have the sweet hot rod kind of sound most people want. I say probably because there's lots of variables in where you dump, how much piping, bends, etc.

 

i just chopped that crap off. it sounds 1000000X better than before. im kicking my self now for paying for that $50 chrome tip.

 

I dumped mine just in front of the rear bumper,no rot ,no exhaust soot,just a nice deep sound.Plus the rear of your truck is kept clean by leaving off the tips.