OH and you can have the 4.3 motor and transmission out in less than 5 hours using handtools and cussing . While taking a break to eat dinner as well. :D

Yea i feel ya man thats basically what i need right now is someone close by that knows trucks and can help out alot. And no she doesnt have a muffler but would it make a noticable power difference to put 2 on?(1 on each pipe)

Do you plan on having a cross over pipe installed as well? If not I would just keep you factory y pipe and either put in a highflow cat or none at all and do a single muffler.

Adding true duals on the 4.3 with no crossover pipe makes it sounds very strange and is a waste of money to get done compared to doing just a single muffler. You can do a single muffler in and dual out retaining the tailpipes you have running into your rollpan now.

On my 4.3 blazer I plan on doing headers and alittle larger than stock piping to one muffler.

ON my v8 s15 I am going to add an hpipe in it to help out.

I couldnt just install the mufflers on each pipe? would that be too much back pressure?

Give me a call 843-813-3157 My name is Hal

no offense whatsoever man but its just a personal thing of mine, i dont really like talkin to people i dont know on tha phone. especially talkin about things i dont know too much about lol

but i mean for tha computer my eyes are wide open to anything you can type to help and i appriciate it alot man.

its no problem

If you insist on running a dual muffler setup from the factory y pipe than ok. But if you are wanting to run true duals I would recommend doing a h or x pipe. (muffler shop should know how to do this) than go to a muffler on each side. From my understanding with your motor is that true duals will be confusing the hell out of your computer possibly throwing a code. Unless of course you get a tune that turns it off.

Honestly, to save money and help out. I would a single in muffler and either dual out or single out. This way you don't have all the extra piping under your truck.

I have straight dual exhaust on my truck and it is a PITA and it runs along the passenger side. One thing you have to think about is that it needs to run along the passenger side as your gas tank is on the drivers side and takes up a decent amount.

right i get what your sayin. I really like the setup i have with the exhaust porting out the rollpan but im sure someone could set it up to still come out like that, even tho im gonna have to buy a new one anyway because theres heat warming under the right pipe port and theres also some melting back from when i got in a small accident and the rollpan was pushed up against the pipe and melting off.

just do a ls7 with a dry sump and ride on out. all the power you need and not keep a set of back tire on the truck for more then a week.

lol try a day. this thing can barely grab the ground in dry weather with street radials.