Muffler upgrade/swap. -newb edition -write up

First things first.
I have never worked on exhaust in my life! So judge lightly!

Note!! For V6 ext. cab PreRunner!! Will not work on i4s!

Parts and tools needed:
Muffler of choice. (preferably 18 inches long to accommodate factory mounting) MUST BE 2.5in in and out! (or you'll have to resize it like i did)

2 1/2 inch exhaust clamp. (don't buy them just weld it..unless you're feeling lucky).

Saws-all with metal-cutting blade.





Now its time to get down to it. Start by cutting, with the sawzall, the inlet on the stock muffler, as close as you can get it, until it releases. You're going to be cutting through a bracket, thats ok.


Next you'll want to remove the exhaust from the underside of the truck but unhooking it from the rubber grommets holding it on.


Also it helps to lower the spare if you have one.


Once that's out of the way go ahead and chop of the rest of the exhaust tubing from the stock muffler taking care not to break or bind the sawzall blade as it will be in a tight spot.


Now that this is done put the remaining exhaust pipe back on and slip the muffler over either end of the chopped pipes. weld er up! Now in my experience the exhaust clamps leaked terribly and didn't work AT ALL. However they are useful when welding to hold it up. The aftermarket muffler i used was quite a bit lighter than stock and is sufficiently held up by some metal wire. Now depending on what you buy you may need (to buy or) reuse your existing exhaust hooks on the stock muffler. Here it is all welded up! (take note the welds aren't pretty that's cause they were literally welded on in ten minutes)




Side note- Dont forget to break your tailgate in the process!!!

 

Can we get a sound test? I'd also be interested in seeing how it hangs from the undercarriage.

Very cool!

 

You sure can! Lol I just gotta go record it on something thats not my phone XD. As far as it sits I can get some more pics so you can see!

 

Exhaust thread without a sound clip!?!? that a super 44 or 50?

 

It's a delta flow 50 series

http://www.flowmastermufflers.com/?page_id=11190

 

i meant delta yea

 

Same procedure for I4s, and pretty much every vehicle ever. On a side note my buddy just installed a super 50 on his 3.4 4rnr, he dont like cuz it drones a bit in the cab but I don't think it sounds to bad for a v6.

 

I'm actually quite surprised it hits such a low note for what size engine it is. Also as far as i4s go I'm pretty sure they have 2inch tubing if I'm not mistaken

 

need soundclip lol

 

there should be a 3.4 exhaust sound clip sticky. honest

 

i wan't to change the muffler on my truck but i don't want to spend a lot of money to buy the part. what i can do gaiz?

 

Here yah go!







and sound clip!
https://www.youtube.com/watch?v=Eof066YNMi4

 

Well what i did cost about 120 bucks total however you can get a louder muffler and it will cost less.

 

on my 4 banger I wanna say its around 2 3/8", the process is still the same just have to get a muffler to fit whatever size pipe you have.