Helicopter drone

[cbprov]

Any way if getting rid if helicopter drone in v4

[Luster]

That's what the "flapper" valve is for. You shouldn't have that if you have stock exhaust, but most likely if you have aftermarket exhaust you will have it.

[newdude]

Need moar info!

 

Is the truck all stock?

 

Aftermarket exhaust?

 

Stock exhaust?

[CbraSvt01]

Range AFM, or get a tune to turn off active fuel management.

[20L8TSierra24]

Range AFM, or get a tune to turn off active fuel management.

Just run it in M5

[CbraSvt01]

Just run it in M5

 

Doesn't that become an issue on the highway?

[20L8TSierra24]

 

Doesn't that become an issue on the highway?

Not sure to tell you the truth. It probably would run around 2500-3000 rpm as a guess at 75. I drive mine in M5 around town just because of the low speed drone. On the highway I put it in Drive for fuel economy.

[Luster]

I put on a Magnaflow, removed the flapper and the resonator. I did that because I like the drone.

[scott19677]

Embrace the drone. 14in Magnaflow with turndowns at rear axle, run in M5 all day long.Sounds great, but when running in 6th on the HY. it can get pretty bad.