1st Gen SRT8-Specific Performance & Engine/Intake/Exhaust ModsThis section is for topics related to SRT8 performance & performance mods. For non SRT8-specific topics, please post in the All Models Forums.
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?
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"
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.
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?
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:
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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