04-28-2010, 02:09 PM | #1 |
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Join Date: Dec 2009
Location: Brighton, CO
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Exhaust Pipe Question
I have 2" exhaust pipe on my truck right now, and need an adapter that will allow me to clamp a 2.5" glasspack on. What do i need for each side, ID, or OD? I do not want to do any welding, i just want the adapter to slide either on the inside or the outside of the pipe and glasspack. thanks for the help, i cant seem to figure out the difference in ID and OD.
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04-28-2010, 03:15 PM | #2 |
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Join Date: Mar 2010
Location: Philadelphia, PA
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Re: Exhaust Pipe Question
ID is inner diameter, OD is outer diameter. 2.5 OD will slip over the outside of your muffler case. 2.5 ID will slide into it.
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04-28-2010, 03:22 PM | #3 |
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Location: Mesa,Arizona
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Re: Exhaust Pipe Question
I just went through this same type of thing. I knew my new stuff was 3'' ID, so that was easy. I dont work in the exhaust industry, but in plumbing the sizes are always ID. My air valves are 3/8's, meaning inside dia. for example. You either need to cut your ex pipe and measure it, or use a C-clamp and loosely fit it over the pipe to measure OD. Depending on the gauge of pipe it will be 1/16th to 1/8th inch smaller on the inside.
If you have a Checker or Autozone nearby, they have numerous exhaust adapters that list OD and ID and come in all sorts of combos. You should be able to play around and get a good combo to fit your needs.
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04-28-2010, 04:03 PM | #4 |
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Re: Exhaust Pipe Question
Ok, I just did some measuring and my muffler is 2.5" ID, and the pipe is 2" OD, so am I correct that an adapter from 2" ID to 2.5" OD will let the adapter slide into the muffler and over the pipe?
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04-28-2010, 06:08 PM | #5 |
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Re: Exhaust Pipe Question
That would be correct.....and from what I've seen you could find stuff to do just about any combo.
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04-29-2010, 12:37 AM | #6 |
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Location: Kansas City, KS
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Re: Exhaust Pipe Question
The fail-safe method is to cut a short length of your exhaust pipe and take it, along with your muffler of choice to your FLAPS (favorite local auto parts store) in your area. With the pipe section and the muffler, you can get the one piece that does the trick.
From the exhaust manifold down-tube or header collector, each adjacent pipe should insert into the one that follows it, in order to decrease the possibility of blow-through at the seams. All couplers should be securely fastened with the correct size exhaust pipe clamps, as well as, quality pipe hangers to keep the system together and adequately supported over time. Good luck and let us know how things work out. |
05-04-2010, 12:08 AM | #7 |
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Join Date: Dec 2009
Location: Brighton, CO
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Re: Exhaust Pipe Question
Got my adapter today, and was able to mount the glass pack up with no troubles. None of the parts stores in town had the adapter that I needed, so I ordered one from summit racing. It works perfect, and the truck sounds great now.
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