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Purchased two Dynomax 24250 for my 2018 6.4. Scheduled to have them installed tomorrow at local shop and got wondering about their orientation. One end is slightly longer than the other, and neither was marked with a directional arrow or "Inlet" or anything of the sort. There was nothing in the box with them except a Dynomax decal. I called the 800 number on their website for tech support, and was surprised to learn that the "long" end is the inlet. I wonder how many are installed backwards and if it really affects the sound very much since it's a straight thru design. Anyway, hope to help anyone in the future that is buying this product to have it installed correctly.
 

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Didn’t know that. Maybe that’s why my car pulls a little to the left now :ROFLMAO: Seriously though, I think they would stamp a direction on them if important.
 

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Purchased two Dynomax 24250 for my 2018 6.4. Scheduled to have them installed tomorrow at local shop and got wondering about their orientation. One end is slightly longer than the other, and neither was marked with a directional arrow or "Inlet" or anything of the sort. There was nothing in the box with them except a Dynomax decal. I called the 800 number on their website for tech support, and was surprised to learn that the "long" end is the inlet. I wonder how many are installed backwards and if it really affects the sound very much since it's a straight thru design. Anyway, hope to help anyone in the future that is buying this product to have it installed correctly.
Wow, having mine installed next Thursday. I have seen posted here that they are not directional. Although I was on the website with the automotive center today with the owner. I did notice that the website does refer to the "inlet" and "outlet" so yes, it does matter. Going to go mark mine right now!
 

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Purchased two Dynomax 24250 for my 2018 6.4. Scheduled to have them installed tomorrow at local shop and got wondering about their orientation. One end is slightly longer than the other, and neither was marked with a directional arrow or "Inlet" or anything of the sort. There was nothing in the box with them except a Dynomax decal. I called the 800 number on their website for tech support, and was surprised to learn that the "long" end is the inlet. I wonder how many are installed backwards and if it really affects the sound very much since it's a straight thru design. Anyway, hope to help anyone in the future that is buying this product to have it installed correctly.
Glad mine were installed properly a couple weeks ago. Maybe cause my exhaust guy is a dynomax dealer, he knew the proper orientation
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Wow, had them on my previous Scat - now I wonder which way they were and I don't think I have any photos... :unsure:
 

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Wow, had them on my previous Scat - now I wonder which way they were and I don't think I have any photos... :unsure:
Were you happy with the sound of them?
 

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They were a little raspy at high rpms to me, but that's being a little picky. Overall I think they were a fair match for the 392 and were great at start up and general driving.
Getting mine put on my Scat next Thursday. Will listen to see if I detect any "raspyness". I will post a thread with impressions.
 

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I'd wonder if there were louvered slots that are visible inside - but if that was concealed by a perforated sleeve, then no visual cues.

good on your part to ask - now we have more collective info
 

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Glass packs had this also. quiet or less depending on which end U choose as inlet. Louver version here

1021071
 

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They were a little raspy at high rpms to me, but that's being a little picky. Overall I think they were a fair match for the 392 and were great at start up and general driving.
You had that with the stock resonators as well I'm assuming? I am thinking about doing this but worried about the rasp you mentioned.
 

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You had that with the stock resonators as well I'm assuming? I am thinking about doing this but worried about the rasp you mentioned.
Yes, this was with the resonators left on. It's such a personal taste thing, the only way to really know if you like it is to do it. :)
Even if I wasn't 100% happy with the tone at WoT, I didn't regret the mod - it's quite cost efficient compared to doing a whole new system.
 

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Yes, this was with the resonators left on. It's such a personal taste thing, the only way to really know if you like it is to do it. :)
Even if I wasn't 100% happy with the tone at WoT, I didn't regret the mod - it's quite cost efficient compared to doing a whole new system.
Yes, even if a little raspy at WOL I'm ok. Don't spend much time there. It's cruising around sound I'm after.
 
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