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Old 02-14-2013, 06:26 PM   #1 (permalink)
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Exhaust Thoughts

Ok so I went from thinking of Blastin Bobs, to Flowmasters, to now Magnaflow. After a lot of research and debates, I think I'm going with the Magnaflow. Muffler then pipe back to a nice tip, probably 4". Not sure what kind though. My question is what kind of MF should I get? Is there a certain type of muffler I should be looking at, offsets, or round and oval, length and width, yada yada yada. I definitely want to get rid of the suit case mufflers and reso's. Where do I go now?


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Old 02-14-2013, 08:32 PM   #2 (permalink)
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Oval, offset/offset, 18" - 22" can length, Magnaflow 11266, 12577, or 13266. Tips - Try a Magnaflow 35206 (round, double wall, 30 degree slash cut) or one of the others shown below. I think a 4" with a 3" inlet would work well. Mine are 3.5"

Muffler Link:

http://www.magnaflow.com/02product/s..._universal.asp

Tip Link:

MagnaFlow Exhaust Products - For Trucks, Suv's, American Muscle, Diesel, & Sport Compact Vehicles

My double wall, slash cut tips, 3.5":







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Old 02-14-2013, 08:56 PM   #3 (permalink)
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Exhaust Thoughts

Did you weld it out or have a muffler guy do it? It looks all welded anyways. Weld inlet of muffler to tips?


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Old 02-15-2013, 05:05 AM   #4 (permalink)
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Find the good exhaust shop in your area by going to a local car show and asking some of the nicer rides where they get their work done.

A good muffler man will want to weld the entire system if possible for longevity and rigidity.
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Old 02-15-2013, 07:20 AM   #5 (permalink)
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Yes, it is all welded.
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Old 02-15-2013, 08:51 PM   #6 (permalink)
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Exhaust Thoughts

@ Maddog, quick question, of the three mufflers you recommended, which do you have? They all say 2.5" in/out. Since we both have the SRT, I thought it was 2.75"?


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Old 02-15-2013, 09:55 PM   #7 (permalink)
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11266 on mine. I selected those just to make sure I wasn't losing any backpressure. 2.5 to 2.75 really ain't that big of a difference. Since my car puts 411 RHWP down on the dyno, I'm OK with those mufflers.
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Old 02-16-2013, 01:02 PM   #8 (permalink)
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Exhaust Thoughts

So I've done some research in my small crappy town and have found that nobody does a good job on exhausts. The one small place that does it, has a welder working there that I wouldn't trust as far as I could throw him and he is three times my size. I've seen his welds and it looks like an alligator threw up all over it. Is banding the exhaust a bad idea and if not, what kind should I use?


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Old 02-16-2013, 01:35 PM   #9 (permalink)
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I had that happen to my ImpalaSS when I put a flowmaster dual system on it. The welder did a crappy, crappy job. There must have been 10 pounds in weld material added to the car.

I walked into the bay just as he was finishing up and said, "WTF???"

I walked into the manager's office (I knew the guy) and took him out to the bay. Not only did he have the guy re-do it but when the guy was done (and he did a much better, cleaner job the second time around), the manager fired him...

Using clamps will work if you get the right ones and are able to adequately seal the joint. Also, tighter is not better. Don't over torque the clamps. If you go, it will crinkle the pipe and create more areas for leaks.

If ya don't want to constantly chase exhaust leaks and there is no good welder around, use a band clamp. Here's an example:

JEGS Preformed Stainless Steel Exhaust Band Clamps - JEGS

These are much more expensive but they do not leak and you'll tend to see high end/high horsepower builders (Foose, Strope, Lingenfelter, Hennessey, etc...) use these:

JEGS Stainless Steel V-Band Clamps with Steel Collars - JEGS

Some folks advocate using a putty on the pipe area to be clamped. I've never used it but folks who do say it removes the potential for a leak at a clamped connection.

Exhaust System Repair : Permatex® Muffler & Tailpipe Putty
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Old 02-16-2013, 02:31 PM   #10 (permalink)
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Exhaust Thoughts

Yeah the one thing with that is the "welder" is the manager/owners son. He is perfect in every way. YAK!! Is it still ok to clamp over the pipes even though the outer diameter is different? I see that the one style of clamps is almost like a reducing coupling.


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