Flo Pro Twister or Moroso Spiral?

[Gunar]

Hello friends,.


I have already used the search function, but nothing found...


I would me like my exhaust something rebuild and a Dealer here in Germany now sells the FLO Pro Twister and the Moroso spiral Exhaust.


My question is whether any of you they had installed once at the 6.5td and is satisfied ?
Is this damper loud or quiet?
I would like to use below only the Downpipe, than the Damper, a little bit Steel Tube and then a Bow...


Thank you in advance...
Greeting
Gunar

 

[DennisG01]

Hello Gunar,

I don't completely understand what you're asking, but that's OK. Let's see if we can figure this out.

I have no experience with the brands you are referring to, but if the pipes are built out of aluminized steel or stainless steel, that's good. The bends should be "mandrel" bent with no "crinkles" in the bends.

I looked at pictures of the two brands you referenced. Most guys here use a straight-flow-through type muffler (damper?). I'm not an "exhaust" expert, but I don't see any benefit to having those baffles inside the muffler. With a "straight-flow-though" muffler, you'd be able to look right through the thing from one end to the other (like a pipe). It may sound odd, but a well designed straight-flow-through muffler will actually work quite well to quiet the exhaust down. Some will still allow for a nice rumble.

You should definitely replace the downpipe as that is typically the worst piece in the system. A 3" downpipe is generally the biggest that will fit. From there, upsizing the pipe to 3.5" is all that is really needed. You can go to 4" if you want, but it provides little, if any, benefit.

Am I on the right track to answering your question, or am I not even close?

 

[Gunar]

Hi Dennis,.


Thank you for your Reply!:thumbsup:You are exactly on the right track!


I am until now without Exhaust system, had only the piece what comes from the Turbo(Downpipe) and then a few inches of Steel Tube and a Bow after looks at the Street...


This is a nice sound, but now I would like to again a bit more quiet and dull!
I know now exactly how many inch the Downpipe had on the original Chevy - I will measure the Times!


My Tahoe runs quite well - I have 33 x 12.50 R15 Maxxis to a 8.5-inch aluminum wheel, Marine Injectors-a Homemade Airfilter-my Boost Pressure is 7.5 to 10.2 PSI and I have the original Axle ratio (I know now not exactly this)
So I drive on the Highway(Autobahn) 110 mph (then the limiter is in) and I drive also steeper mountains without problems with my Trailer in back(8800 lb).


Dennis can you tell me what´s your Speed with your Chevy in America and how many you tow with your Trailer..!?


My English is not very well, but I hope you can read it and understand it..?:thumbsup:


Best regards!
Gunar

 

[ak diesel driver]

well now we know what mph the speed limiter kicks in at LOL

 

[DennisG01]

My English is not very well, but I hope you can read it and understand it..?:thumbsup:

No problem - it's quite good. As expected, when going back and forth between languages, there are different "terms" used for various things. For example: what you meant by "and a Bow after looks at the Street"... we would usually say: "and a turn down piece". It just took me a few times reading it to figure it out - no problem at all!

I don't know if I have a rev-limiter built into my custom computer programming, or not. I don't think I've ever gone over 90MPH. It can go faster, but I just have never done it.

For reference, here's what I have on my truck. There's pictures in this link, so it'll give you a better idea.
http://kennedydiesel.com/detail.cfm?ID=128

Maybe you should just extend the pipe all the way back and have the pipe turn out behind the rear wheel. That would quiet it down some and using a "turn out" instead of a "turn down" might eliminate some resonance where the sound bounces off the road and back up at the chassis. Basically, make your "bow" go horizontal (behind the rear wheel) instead of vertical underneath the chassis. If you find that isn't quiet enough, then look into getting a muffler and cut it in.

I tow 10,000lbs - but I've done extensive mods to be able to handle that kind of weight without worrying about overheating anything. I can "push the pedal to the metal" up a long hill and my temps will never get out of control. I also have a longer wheel base than a 2-door Tahoe which helps tremendously.

"Push the pedal to the metal" means: push the accelerator pedal all the way down -- 100% throttle. We also sometimes refer to the accelerator pedal as "the skinny pedal" or the "go pedal".:smilewinkgrin: Sometimes, by mistake, we refer to it as the "gas pedal".

 

[Gunar]

Hi Dennis,


Thank you for your Explanations!
Pedal to the Metalatriot: I heard that ever...


Kennedy Diesel I know-I wanted to buy something there too some time ago, but unfortunately he sent not to Germany...


I'm happy with my Sound and it is true the rear Hall is already great but that does not bother me. I wanted only that is somewhat quieter-but tough...


I'm also not always.... driving speed ´ Drive American Cars such as an American and not like a Europeans-and you have no Problems!
Many who drive a car from America here in Germany, have problems with their automatic transmissions, because she are very fast driving....i until now fortunately still no problems, the 4 L80 is very good!


Best Regards to the other Side of the World!:thumbsup:
Gunar

 

[Cirrus2]

I had a flowpro system on my 6.5. I was impressed with the quality and fit. I ended up chopping part of the system (including the muffler) to make a single stack setup. I wish I still had pictures of it.I would recommend flowpro to anyone.

 

[Dan Hunter]

About an hour ago, I installed a 4" flowpro with soot trap and muffler deleted and I'm quite satisfied with the fit/finish of the unit. The hangers matched up well and the supplied clamps work fine.