I have a 89 f350 with 351 and I would run a x pipe if your going to run duals. I have one on my truck and two airplane muffler and no tail pipes but it is loud.

 

I have hooker LT's that run straight down the passenger side to a dual in dual out flow master super 40. I love it. I need to add an h-pipe tho because I get some pop when I let off the gas from high rpm. But the muffler I got worked perfect cleance wise and allows me to run both pipes on the same side. I am upset at my muffler shop tho. I wasn't able to stay and watch them so they did a pretty **** job and routed the pipes from the collectors under my trans crossmember instead of offsetting up and over it. Im pretty **** when it comes to my exhaust.

 

If that's the sound you're after you want to run either without mufflers or put on some shortish glasspacks.

 

Got to say again 2 1/2 "Y" into a single 3". You'll get better performance and it's lighter.

I got a Series 70 Flowmaster for a big block for, well, flow. A week later I put a 7X18" Magnaflow glasspack behind it to quiet it down.

I have not done it, but like the idea of a cut-out. If you want loud and aggressive when you open it up, you open it up!

Look here:
http://forums.fourwheeler.com/70/662...outs-march-07/

 

this summer I threw out the old manifolds and put in some long tube headers on my 302. I had to have the drivers side header shortened about 3 inches because of the transfer case. After installing the headers I took the truck down to a custom exhaust shop and he ran true dual 3" pipes down the passenger side of the truck, made an h-pipe, placed two flowmaster super 44 series upright, then came straight out the back on either side of my hitch. then I insalled stainless steel tips. And I LOVE the sound it makes. I get head turns all time when I drive around. It sounds really mean when you geton it ;P

 

So I have a 93 f250 offroad with a, I'm guessing 3" lift on it, and I am having issues with the headers hitting the front u-joint on the front drive shaft. Is this the same issue you had?? How did you get around that??

 

I had that same issue so I took my header to the guy who ended up doing my entire system and he shortened the drivers side header by about 3 inches I believe.

 

I suggested shorty's and then custom bent after that... Do you think that would work, just from seeing what you have?? The guys that have mine have had it for 3 days and seem to be clueless, any suggestions would be great

 

I'm almost positive shortys won't work because the starter would be In the way on the passenger side. But that'd be something you'd actually hafta hold up there to see probably.