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anyone have expierience with the aeroturbine?? 4040xl or 4040??? which one sounds better I dont want drone I have a 5 month old and take long trips
 

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The xl or with resonator, the versions without are race versions and really do very little for sound
 

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I have the 4040 and I get drone when towing. But just cruising around, AWESOME sound. I heard, if you order it from the Aero Manufacture website, you get a 30 day trial. So if you don't like the 4040 you can exchange it for the 4040xl. Can anyone confirm?
 

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aero wont help turbo whine. i run a 4040 with cat and love it, it sounds awesome. without a cat you would probably want the resonated version and put it in the stock muffler position
 

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Heres a dumb ? Does it help the turbo whistle at all.
I like to here my turbo whistle.
I belive there is a silencer ring near the intake you can remove to hear the whine of the turbo more.
 

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I have the 4040 and I get drone when towing. But just cruising around, AWESOME sound. I heard, if you order it from the Aero Manufacture website, you get a 30 day trial. So if you don't like the 4040 you can exchange it for the 4040xl. Can anyone confirm?
IM a dealer and i am not aware of that, it was never told to me or brought to my attention thru any correspondence
 

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yeah..i bought a 5050xl and never heard of that offer
 

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Hmmm...I'll try to find the website where i heard that from.
 

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I belive there is a silencer ring near the intake you can remove to hear the whine of the turbo more.
Ya I did that, bigger air filter, and 4" straight pipe to 5" stacks. Probably not going to get any louder.
 
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