Magnaflow Exhaust Whistle

[mikeakasully]

Installed the Magnaflow cat back exhaust, and I notice when I get on it, (above 4000 - 4500 rpm) I get quite the whistle noise. Anyone else with this exhaust have this? My buddy who has an F-150 twin turbo noticed the same thing when he welded on a twin tip to his exhaust. Could the twin tip be the cause? Magnaflow claims this is turbo whistle, not the exhaust itself?

noise1.mp4

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[Montana]

You got that woo woo?

 

[mikeakasully]

Indeed I do!

 

[Bargeld]

Gasket between 2 flanges? Lack thereof?

 

[BoskoPColtrane]

You got that woo woo?

This is why I came to this post. You sir, made my day. Whoo, whooooo

 

[Aherpa]

Installed the Magnaflow cat back exhaust, and I notice when I get on it, (above 4000 - 4500 rpm) I get quite the whistle noise. Anyone else with this exhaust have this? My buddy who has an F-150 twin turbo noticed the same thing when he welded on a twin tip to his exhaust. Could the twin tip be the cause? Magnaflow claims this is turbo whistle, not the exhaust itself?

noise1.mp4

The manufacturer may be right. I put a cold air return on my F150 Eco twin turbo and it made a sort of whistling sound, especially letting off the throttle.
It might be the fact that the engine can breath (or exhale) better so the flow of air/exhaust is increased.

 

[Montana]

This is why I came to this post. You sir, made my day. Whoo, whooooo

WOOO WOOO!

 

[LM42]

Installed the Magnaflow cat back exhaust, and I notice when I get on it, (above 4000 - 4500 rpm) I get quite the whistle noise. Anyone else with this exhaust have this? My buddy who has an F-150 twin turbo noticed the same thing when he welded on a twin tip to his exhaust. Could the twin tip be the cause? Magnaflow claims this is turbo whistle, not the exhaust itself?

noise1.mp4

I don't hear turbo whistle in this video at all. I think that is just their exhaust note. I love Magnaflow product. I've used it on several trucks and also my Z06 Corvette. But for sure some applications there stuff does not sound great, or even good at WOT. I have seen that complaint specifically about their Maverick kit somewhere else on this forum.

 

[mikeakasully]

I definitely think the noise is at the dual tips.
I covered one of the tips, and the whistle went away. Just loud air noises.

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