Hello Everyone,

I plan to put a new muffler on my truck, it is only 28" long from end to end (including in & out tips) stock muffler on my truck is 33". What can I do to make up the difference and properly install the muffler. Also, what additional tools and parts will I need. I have never done this before, my father in-law will be helping too, I don't think he has a welder either. Anything helps. Smart@$$es need not apply.

Thank You.

G

 

well there are two ways the cheap way that is not as good, get a short piece of pipe that will slide over your existing pipe and the new muffler and use clamps, and the better way paying a exuast shop the $50 or so dollars to put on the pipe and muffler and they weld it, if you dont have a welder i would just pay the shop to do it, good luck

 

Obviosly, you will need the correct diameter pipe(is your pipe to the muffler the same size as the inlet to your new muffler?) to splice in. You will also need clamps. But, how are you going to cut the old muffler off? Is the new muffler a SISO, so you will be using the existing tailpipe? I think I would consider taking it to a muffler shop and getting a quote on the installation.

 

thanks for the quick replies. we have the tools to cut the stock muff. the new muff has 2.5" in/out just like the stock one.
I am considering not welding because I may run duals out of it with a Y pipe later down the road. I went to summit to look up any type of small pipe to extend to make up for the 5 inches. but maybe I am not looking right, if anyone could point me in that direction it would be appreciated.

Thank You Very much

G

 

I just think you will have a difficult time finding the pipe that will work on both ends. If you think you want duals later, just go for it now. Have a shop install them for you. Doing it yourself is ok if you you buy a complete made specifically for your vehicle but when you start splicing, it is hard to find the right pieces in the correct lengths and difficult to seal off all connections without welding. Good luck though.

BTW, I took my truck down to a muffler shop right after I got it and had a Flowmaster SIDO installed and I love it. Did the same with my last truck. It only cost $225 and I did not have to mess with all the headache you are going through.

 

how much do you think a shop would charge to run duals out of the muffler? I already have the muffler.

 

Prices seem to vary a lot depending on where you are and the shop. When I wanted my setup, I called 3 local shops and the quotes were $225, $240, and $275. The low bidder was the shop I preferred in the first place, so I went with them and the work was perfect. I got a Flowmaster 40, SIDO, pipes fabricated out the rear, and 3" extensions 18" long.

You just need to decide exactly what you want quoted and call some shops for a quote.

Also, it may be common, but I have not heard of anyone doing a SISO to a Y pipe and 2 tailpipes. I would just do the single out or go with a muffler that is SIDO.

 

Thanks for all of your help so far it is greatly appreciated. I still haven't decided what I want to do. the muff I have has the same size in and out as the stock and is 5 inches shorter. I am still leaning towards doing it myself, because 1. I am a cheap@$$ and 2. You take more pride in your own work.

what part would I need to make up for that 5" gap?

 

What you need is a short piece of 2.5" pipe. A muffler shop will expand the ends for you enough to slide it over the muffler and existing pipe. Some auto parts stores sell the manual expander. You'll need an impact to make it work. Basically, its a big screw through an expanding metal collar and has a tapered center piece that the tighter you get, the more it expands. Over expansion can cuase cracks though. Measure up and figure out exactly how mych you need, including at least 1.5" on each side to slide over the existing pipe.....Good Luck

 

You are going to have to find a pipe that is about 10 to 11 inches long that will slide either over or into your exhaust pipe and on the other end it has to slide over or into your muffler. So you have to figure out what the inside or outside diameter has to be on each end. That is the kicker, you may not find that, or it may be easier than I think. The difference when you are welding is that the pipe can be the same diameter, butted up and welded.

Once you determine the diameter, you can check parts houses, they may have something.

 

I just ordered (2) 4 3/4" long 2.5" dia expanders, and O Reilly's will rent me out a Exhaust Tool which cuts, chisels and expands.... hopefully that will help the job out.....

 

thanks for all your help so far guys. I never thought that when I bought my truck, it would come with a support community of stand-up guys for free.

 

Thanks for the help ya'll I was able to switchout the mufflers and it sounds great! I must say it did sound pretty good without a muffler, but it would have gotten annoying eventually.

 

Glad it worked for you and you are happy with it.

 

IMO dont put duals, I went with a 3" in/out dynomax bullet muffler and dumped it with a turn down I really like the way it sounds.